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FAQ

Bestellung und Versand

In most cases, the goods are shipped on the same day. Your order confirmation contains detailed information about the ordered products and the estimated shipping date.

We ship online shop orders, telephone orders, and written orders within Germany via UPS. For international shipments, we usually use DHL. If you have specific shipping requirements or preferences, please contact us immediately so that we can accommodate your request as best as possible.

Within Germany, your package will usually arrive on the next business day when shipped via UPS.
If you prefer DHL, the delivery time is approximately 1-3 days.
For international shipments, packages typically arrive within 3 to 5 days.

You have the option to pay in advance via bank transfer or conveniently via PayPal, American Express, Visa, or MasterCard.
Customers with a registered business address in Germany can also pay by invoice.

Our return policy allows you to return the product in its original condition within 30 days without providing a reason.

Return Requirements

Ensure that the product is returned in its original condition, including all accessories and the original packaging.

  1. Return Process

    • Simply contact us via email at info@rinaldi-tools.com or call us at +49 208 - 848 67 82 to initiate the return process.
    • You will receive further instructions and possibly a return label via email.

  2. Refund or Exchange

    • After receiving and inspecting the returned product, you can choose between a full refund or an exchange for another product from our range.

You can easily reach us at +49 208 - 848 67 82, and we will cancel your order for you!

(Please refrain from sending cancellation requests via email, as they may be overlooked, and the order might be shipped.)

We offer Europe-wide delivery and are committed to providing you with fast and reliable service. No matter where you are, we want to ensure you benefit from our products and services.

Monday to Thursday: 8:00 AM – 4:00 PM
Friday: 8:00 AM – 3:00 PM

We strive to offer you a reliable and timely service. If you need assistance outside of these hours or cannot reach us, please send an email to info@rinaldi-tools.com, and we will get back to you as soon as possible.

Address:
Rheinstraße 61
45478 Mülheim an der Ruhr
Germany

Phone: +49 (0)208 - 848 67 82
Fax: +49 (0)208 - 848 67 84
Email: info@rinaldi-tools.com

Please note that our products are only available via shipping. We do not offer on-site pickup for orders.

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Allgemeine technische Fragen

A torque screwdriver is a tool specifically designed to tighten screws with a precisely defined torque. Torque screwdrivers are particularly important in applications where precise tightening is required to meet specific regulations, standards, or specifications. Here are some features and functions of torque screwdrivers:

  1. Precise Screw Tightening

    • These tools ensure that screws are tightened with the exact required torque, preventing over-tightening or insufficient tightening.

  2. Applications in Various Industries

    • Torque screwdrivers are used across various industries, including manufacturing, electronics, automotive, aerospace, medical technology, and other fields where precise assembly operations are essential.

  3. Types of Torque Screwdrivers

    • There are different types of torque screwdrivers, including mechanical, electronic, and digital models. Electronic and digital torque screwdrivers often offer additional features such as data storage, real-time torque display, and wireless data transmission.

The use of torque screwdrivers helps ensure consistent and precise assembly of components, which is critical in many industries to maintain safety, quality, and performance.

In metal machining, certain materials are classified as special materials due to their unique properties or specific machining challenges. Here are some examples of special materials in metal cutting:

  1. High-Performance Plastics (PEEK, PTFE, Teflon)

    • High-performance plastics such as PEEK (Polyether Ether Ketone), PTFE (Polytetrafluoroethylene), and Teflon are used in machining due to their high-temperature resistance and low friction properties.

  2. Titanium Alloys

    • Titanium alloys, such as Ti-6Al-4V, are widely used in aerospace and medical applications due to their high strength, low density, and corrosion resistance. Machining titanium requires specialized tools and techniques.

  3. Superalloys (Inconel, Hastelloy)

    • Superalloys like Inconel and Hastelloy are known for their resistance to extreme temperatures and harsh environments. They are commonly used in high-temperature applications but require specialized machining tools.

  4. Composite Materials (CFRP, GFRP)

    • Composite materials, such as carbon fiber-reinforced plastics (CFRP) and glass fiber-reinforced plastics (GFRP), require specialized tools and machining strategies due to their unique structural properties compared to metallic materials.

  5. Nickel-Based Alloys (Monel, Inconel)

    • Nickel-based alloys, such as Monel and Inconel, offer excellent corrosion and high-temperature resistance. They are often used in the chemical and aerospace industries.

  6. High-Temperature Alloys

    • Alloys with high heat resistance, such as Stellite, are used in high-temperature applications and require customized machining approaches due to their unique properties.

These special materials often demand advanced cutting tools and machining techniques to achieve high-quality results and maximize tool life.

Hardness Scale for Steel

The hardness of steel is often measured using the Rockwell hardness test, expressed in HRC (Rockwell C Hardness). This is a widely used method for determining the hardness of various materials, including steel.

The HRC scale ranges from low values, representing softer and tougher steels, to higher values, indicating harder and more brittle steels. Here are some general ranges and examples of HRC values for steel:

  • Very Soft (Low HRC Values): 20 HRC or lower. These steels are typically very tough and well-suited for applications where flexibility and impact resistance are more important than hardness.

  • Soft to Medium (20-40 HRC): Steels in this range offer a balanced combination of toughness and hardness. They are commonly used in applications requiring good machinability and wear resistance.

  • Medium to High (40-60 HRC): This range includes steels with increased hardness and reduced toughness. They are often used in tools and components requiring high wear resistance and hardness.

  • Very Hard (Above 60 HRC): Steels with very high HRC values are extremely hard and brittle. They are frequently used in high-wear applications, such as cutting tools and ball bearings.

Selecting the appropriate HRC range depends on various factors, including the specific application, operating environment, and desired material properties. The HRC scale is one of several hardness measurement methods, with other scales like Brinell (HB) and Vickers (HV) also used for different applications.

Wendeschneidplatten

Indexable Inserts (WSP) in Machining

Indexable inserts (WSP) are used in metal cutting to remove material from a workpiece. The difference between positive and negative indexable inserts lies in the cutting edge geometry and the cutting conditions under which they operate most efficiently.

1. Positive Indexable Inserts:

  • Advantages:
    • The cutting edge is designed with a positive rake angle.
    • Positive rake angles facilitate entry into the workpiece, reduce cutting resistance, and produce thinner chips.
    • Suitable for low cutting forces and recommended for light to medium machining operations.
  • Applications:
    • Ideal for soft materials and unstable machining environments.

2. Negative Indexable Inserts:

  • Advantages:
    • The cutting edge has a negative rake angle.
    • Negative rake angles produce thicker chips, making them better suited for heavy-duty machining.
    • Provides higher stability and is less sensitive to vibrations.
  • Applications:
    • Suitable for challenging machining tasks, especially at higher cutting speeds and deep cuts.

The choice between positive and negative indexable inserts depends on various factors, including workpiece material, machining conditions, desired surface quality, and machine stability. Positive inserts are commonly used for general machining, whereas negative inserts are preferred for demanding applications and tougher materials.

CBN indexable inserts are cutting tools used in machining technology. CBN is composed of cubic crystalline boron nitride and is one of the hardest known substances, second only to diamond. Due to its exceptional hardness and thermal stability, CBN is particularly well-suited for machining hard materials, especially hardened steels and cast materials.

Key Features of CBN Indexable Inserts:

  1. Hardness and Wear Resistance:

    • CBN is extremely hard and highly wear-resistant, allowing effective machining of high-hardness materials, such as those used in the automotive and aerospace industries.

  2. Heat Resistance:

    • CBN is thermally stable and can withstand high temperatures without rapid tool wear, making it suitable for high-speed machining and applications where cutting generates intense heat.

  3. Applications:

    • Commonly used in hard machining, particularly for hardened steels, cast iron, stainless steels, and other high-hardness materials.
    • Applied in turning, milling, and other machining processes.

  4. Precision and Surface Finish:

    • CBN tools enable high machining precision and produce excellent surface finishes, which is crucial for applications requiring high-quality final surfaces.

CBN indexable inserts are essential in specialized machining areas where conventional cutting tools would wear out quickly due to the hardness of the workpiece material. These tools improve efficiency and tool life in demanding machining applications.

PCD indexable inserts are cutting tools with a cutting edge made of polycrystalline diamond. PCD is synthesized through a high-pressure, high-temperature process, bonding small diamond crystals into a strong, wear-resistant material.

Key Features of PCD Indexable Inserts:

  1. Hardness and Wear Resistance:

    • PCD is one of the hardest materials available, comparable to natural diamond.
    • Highly wear-resistant, making it ideal for machining non-ferrous metals, composite materials, and aluminum.

  2. Thermal Conductivity:

    • PCD has excellent thermal conductivity, efficiently dissipating heat during cutting.
    • Well-suited for high-speed machining and applications where cutting generates high temperatures.

  3. Applications:

    • Used in a wide range of machining tasks, particularly for non-ferrous metals, composite materials, and high-performance plastics.

  4. Precision and Surface Finish:

    • Due to its high hardness and wear resistance, PCD tools offer excellent repeatability and achieve superior surface finishes.

  5. Low Reactivity:

    • PCD has low chemical reactivity with workpiece materials, reducing unwanted reactions during cutting.

  6. Cutting Geometry:

    • PCD inserts can be manufactured in various cutting geometries to meet different machining requirements.

PCD indexable inserts are widely used in industries requiring high hardness and wear resistance. These tools enhance efficiency and tool life in demanding machining applications.

Cermets are a class of cutting materials composed of a blend of ceramic (typically titanium or tantalum carbide) and metal (usually cobalt). The name "cermet" is derived from the combination of "ceramic" and "metal." This material combines the hardness and wear resistance of ceramics with the toughness of metals.

Cermet indexable inserts are cutting tools where the cutting material consists of a cermet compound.

Key Features and Advantages of Cermet Indexable Inserts:

  1. Hardness and Wear Resistance:

    • Due to their ceramic components, cermets offer high hardness and wear resistance, making them ideal for machining hard materials such as steel and cast iron.

  2. Toughness and Machinability:

    • Compared to pure ceramics, cermets are tougher and have better fracture resistance, making them easier to use in various machining applications.

  3. Heat Resistance:

    • Cermets can withstand high temperatures without rapid tool wear, making them suitable for high-speed machining applications.

  4. Applications:

    • Used in various machining processes, including turning, milling, and drilling.
    • Particularly useful for machining hardened steels, stainless steels, and other demanding materials.

  5. Surface Finish:

    • Cermet tools often produce high-quality surface finishes due to their cutting properties.

  6. Stability:

    • Cermets provide stable cutting edges, leading to reliable and consistent machining performance.

It is important to note that the exact composition of cermets may vary depending on the manufacturer, and different types of cermets have unique properties. Selecting the appropriate cermet tool depends on specific machining requirements, workpiece materials, and desired outcomes.

The RT225+ grade is manufactured using the latest sintering process, resulting in significantly higher tool life compared to the RT250+ grade.

Beschichtungen

A TiN coating stands for Titanium Nitride and is a coating used on tools such as drills, milling cutters, and other cutting tools.

Here are some key features and benefits of TiN coatings:

  1. Hardness and Wear Resistance

    • TiN coatings have high hardness, which makes tools more resistant to wear. This leads to a longer tool life and improved productivity.

  2. Lubricity

    • TiN has good sliding properties, helping to reduce friction between the tool and the machined material. This minimizes cutting resistance and improves the surface quality of machined parts.

  3. Corrosion Resistance

    • TiN coatings also provide some level of corrosion resistance, which is important for extending tool life in humid or corrosive environments.

  4. Applications

    • TiN coatings are used in a variety of machining applications, including drilling, milling, turning, and other cutting operations.

  5. Color

    • TiN coatings typically have a characteristic golden or gold-yellow color. While the shade may vary by manufacturer, the golden appearance is typical of TiN coatings.

  6. Low Reactivity

    • TiN coatings have low reactivity with many materials, meaning they are less likely to interact negatively with the workpiece during machining.

TiN coatings are widely used in the metalworking industry to enhance tool performance and extend tool life. It is important to note that the exact composition and specific properties of a TiN coating may vary depending on the manufacturer.

A TiAlN coating stands for Titanium Aluminum Nitride and is a specialized type of coating used on tools such as drills, milling cutters, and other cutting tools. This coating consists of the two compounds Titanium Nitride (TiN) and Aluminum Nitride (AlN).

Here are some key features and benefits of TiAlN coatings:

  1. Hardness and Wear Resistance

    • TiAlN coatings are known for their high hardness, making them resistant to wear. This results in a longer tool life and higher productivity.

  2. Heat Resistance

    • The addition of aluminum nitride improves the heat resistance of the coating compared to pure titanium nitride (TiN). This is particularly important when machining materials that generate high temperatures, such as stainless steel or titanium alloys.

  3. Lubricity

    • TiAlN coatings have low friction and good sliding properties, helping to reduce cutting resistance and improve the surface quality of machined parts.

  4. Applications

    • TiAlN coatings are widely used in demanding machining applications, especially for cutting heat-resistant alloys, titanium alloys, stainless steel, and other difficult-to-machine materials.

  5. Color

    • TiAlN coatings have a characteristic dark color, which may vary by manufacturer but often appears blue or violet. This contrasts with the golden TiN coating.

  6. Improved Oxidation Resistance

    • The addition of aluminum improves the oxidation resistance of the coating, making it more stable at higher machining temperatures and helping maintain its performance.

TiAlN coatings are commonly used in the metalworking industry to extend tool life, increase machining efficiency, and improve the quality of machined parts. The exact composition and properties can vary depending on the manufacturer.

Both TiN (Titanium Nitride) and TiAlN (Titanium Aluminum Nitride) are coatings applied to cutting tools, drills, milling cutters, and other tools to enhance their durability and performance.

Here are the main differences between TiN and TiAlN coatings:

FeatureTiN (Titanium Nitride)TiAlN (Titanium Aluminum Nitride)
CompositionPrimarily Titanium Nitride (TiN). Recognized by its golden color.A combination of Titanium Nitride (TiN) and Aluminum Nitride (AlN).
Hardness & Wear ResistanceOffers good hardness and wear resistance.Harder and more wear-resistant than TiN.
Heat ResistanceModerate heat resistance.Higher heat resistance due to the addition of aluminum.
ApplicationsSuitable for general machining and milling.Ideal for difficult-to-machine materials like stainless steel and titanium alloys.
ColorGolden.Darker, often blue or violet.
Performance at High TemperaturesCan oxidize and lose effectiveness at high temperatures.Better oxidation resistance, making it more stable at high temperatures.

Both coatings improve wear resistance and durability compared to uncoated tools. The choice between TiN and TiAlN depends on the specific machining task, material, and operating conditions.

PVD (Physical Vapor Deposition) is a group of coating technologies used to apply thin layers of materials to workpieces. This process is widely used in manufacturing to enhance surface properties of tools and components.

Key Steps in the PVD Coating Process:

  1. Vacuum Chamber

    • The workpiece is placed in a vacuum chamber to ensure controlled coating conditions.

  2. Evaporation of Coating Material

    • The coating material (typically metal or alloy) is vaporized inside the chamber using methods like arc evaporation, sputtering, or ion plating.

  3. Plasma Formation

    • The vaporized material forms a plasma composed of charged ions, which are directed toward the workpiece using electric or magnetic fields.

  4. Deposition on the Workpiece

    • The ions condense on the surface, forming a thin protective layer.

  5. Controlled Coating Thickness

    • The thickness of the coating is controlled by adjusting process parameters, such as gas composition and duration.

Benefits of PVD Coatings:

  • Improved Hardness and Wear Resistance – Extends tool life.
  • Reduced Friction – Enhances machining efficiency.
  • Increased Heat Resistance – Important for high-temperature applications.
  • Aesthetic Appeal – Used for decorative finishes.

Common PVD coatings include TiN (Titanium Nitride), TiCN (Titanium Carbonitride), and TiAlN (Titanium Aluminum Nitride), each tailored for specific applications.

DLC (Diamond-Like Carbon) is a special carbon-based coating applied to surfaces for extreme hardness and durability.

Key Features of DLC Coatings:

  1. Material Composition
    DLC consists of amorphous carbon layers (a-C), often combined with hydrogen, nitrogen, or silicon.

  2. Diamond-Like Structure
    While not pure diamond, DLC shares similar hardness and wear resistance properties.

  3. High Hardness & Wear Resistance
    DLC coatings significantly increase tool longevity.

  4. Low Friction
    Reduces wear in high-load or high-speed applications.

  5. Corrosion Resistance
    Protects tools from rust and oxidation.

  6. Biocompatibility
    Used in medical implants and optical applications due to its chemical stability.

DLC coatings are commonly used in automotive, medical, and tool manufacturing industries.

Tools for aluminum machining are often uncoated or use specialized coatings due to the following reasons:

  1. Aluminum is a Soft Material

    • Uncoated tools can efficiently cut aluminum without needing additional hardness.

  2. Low Built-Up Edge Formation

    • Aluminum generally does not create built-up edges, reducing the need for coatings.

  3. Lower Cutting Temperatures

    • Aluminum machining generates less heat, making coatings less necessary.

  4. Cost Considerations

    • Uncoated tools are more economical when coatings are not essential.

However, DLC coatings can enhance performance for high-speed aluminum machining. The choice depends on cutting speed, material requirements, and budget.

HSS- und VHM-Werkzeuge

HSS stands for "High Speed Steel" and refers to a class of tool steels specifically developed for manufacturing cutting tools used in machining. These tools are characterized by their high hardness, wear resistance, and heat resistance. In the past, HSS tools were particularly important as they represented one of the best available options for machining technology before the advent of modern carbide and other cutting materials.

Here are some key characteristics of HSS machining tools:

  1. Composition:
    HSS is an alloy composed of iron, carbon, tungsten, manganese, chromium, and vanadium. The exact composition may vary depending on the manufacturer, but these alloying elements give the steel the necessary properties for cutting tools.

  2. Hardness and Wear Resistance:
    Compared to regular carbon steel, HSS tools offer higher hardness and wear resistance. This allows them to operate at higher cutting speeds and maintain their sharpness for longer.

  3. Heat Resistance:
    HSS is known for its excellent heat resistance, meaning it can operate at higher temperatures without the cutting edge dulling quickly. This is particularly important for machining operations that generate significant heat.

  4. Applications:
    Traditionally, HSS tools have been used for a wide range of machining applications, including turning, milling, drilling, and cutting. They are especially suitable for machining soft to medium-hard materials.

  5. Resharpening Ability:
    HSS tools can be resharpened after wear, making them more cost-effective. Unlike some carbide tools, HSS tools can be repeatedly sharpened and reused.

Although HSS tools have been largely replaced in many applications by more advanced cutting materials such as carbide, PCD, and CBN, they remain relevant for specific applications where factors like cost-effectiveness, special requirements, and resharpening capability play a crucial role.

VHM stands for "Vollhartmetall" (solid carbide) and refers to a class of machining tools made from a carbide alloy. Carbide, also known as tungsten carbide, is a hard material produced by mixing tungsten carbide powder (WC) with a binder, often cobalt (Co). This alloy is then sintered into an extremely hard and wear-resistant substance.

Key Characteristics of VHM Machining Tools:

  1. Hardness and Wear Resistance:

    • VHM tools are extremely hard due to their tungsten carbide content and are highly resistant to wear. These properties make them particularly suitable for machining hard materials and high-speed cutting applications.

  2. Heat Resistance:

    • VHM tools have excellent heat resistance, allowing them to perform effectively even at high machining temperatures without the cutting edge dulling quickly.

  3. Applications:

    • VHM machining tools are used in a variety of applications, including turning, milling, drilling, and other machining operations. They are particularly effective for machining hard materials such as steel, stainless steel, cast materials, titanium alloys, and other demanding materials.

  4. Cutting Geometry:

    • VHM tools can be manufactured with different cutting geometries to meet the requirements of various machining tasks. This enables precise adaptation to specific applications and materials.

  5. Precision:

    • Due to their high hardness and wear resistance, VHM tools allow for high repeatability and contribute to achieving high surface quality on machined parts.

  6. Resharpening Ability:

    • Compared to some other carbide alloys, VHM tools are less easily resharpened. However, in many cases, it is possible to resharpen and reuse VHM tools, which enhances their cost-effectiveness.

VHM tools are a crucial option in modern machining technology and are frequently used in high-performance applications, especially when machining hard and abrasive materials.

HSS (High-Speed Steel) and VHM (Solid Carbide) are two different categories of tool materials used in machining technology.

Key Differences Between HSS and VHM Tools:

  1. Composition:

    • HSS: Composed of an alloy of iron, carbon, tungsten, manganese, chromium, and vanadium. It primarily consists of steel alloys with high amounts of hard materials like tungsten and molybdenum.
    • VHM: Made of carbide, mainly tungsten carbide (WC) with a binder, often cobalt (Co). It is a hard material alloy.

  2. Hardness and Wear Resistance:

    • HSS: Provides good wear resistance and is well-suited for machining soft to medium-hard materials.
    • VHM: Extremely hard and highly wear-resistant, making it ideal for machining hard materials such as steel, stainless steel, cast materials, titanium alloys, and other demanding workpieces.

  3. Heat Resistance:

    • HSS: Has good but limited heat resistance. It can be used at higher temperatures but is not as heat-resistant as VHM.
    • VHM: Has excellent heat resistance, allowing effective operation at high cutting speeds and temperatures.

  4. Applications:

    • HSS: Used for a variety of machining applications, particularly in thread manufacturing.
    • VHM: Ideal for machining hard materials, high-speed machining, and demanding applications.

  5. Resharpening Ability:

    • HSS: Can be resharpened after wear, enhancing its cost-effectiveness.
    • VHM: More challenging to resharpen than HSS, but it is possible in many cases. The ability to resharpen depends on the specific application.

  6. Cost:

    • HSS: Generally more cost-effective than VHM tools.
    • VHM: More expensive due to its complex manufacturing process and superior properties.

The choice between HSS and VHM tools depends on various factors, including the material being machined, the machining task, cutting conditions, and cost-effectiveness. Both tool types have their strengths and weaknesses, and selection is based on the specific requirements of the machining operation.

Thread taps and thread formers are tools used to create threads in metal, but they differ in their working principles and application areas.

  1. Thread Tap:

    • A thread tap is a tool used to cut a thread into a pre-drilled hole.
    • There are different types of thread taps, including through-hole taps (for continuous holes) and blind-hole taps (for holes that do not go through the entire material).
    • Thread taps have cutting edges that penetrate the material and cut the thread.

  2. Thread Former:

    • A thread former is used to form a thread in a pre-drilled hole rather than cutting it.
    • Unlike a thread tap, which removes material, a thread former displaces the material to shape the thread.

The choice between a thread tap and a thread former depends on various factors, including the material, required precision, and specific project requirements.

An HPC milling cutter is a tool specifically designed for demanding machining tasks and high-performance milling applications.

Key Features and Advantages of HPC Milling Cutters:

  1. Special Cutting Geometry:

    • Optimized for efficient chip removal, reduced cutting forces, and improved surface finish.

  2. Variable Helix Angles:

    • Enhances stability, ensures even load distribution, and improves machining efficiency, especially for difficult-to-machine materials.

  3. Special Coatings:

    • Coatings such as TiAlN (Titanium Aluminum Nitride) improve durability and wear resistance.

  4. Higher Cutting Speeds:

    • Allows for shorter machining times and increased productivity.

  5. Reduced Vibration:

    • Designed to minimize vibrations, ensuring more stable machining and better surface quality.

HPC milling cutters are used in various industries where high precision, surface finish, and productivity are required. The selection of the appropriate HPC cutter depends on the machining task, material, and process requirements.

Weldon Shank and Cylindrical Shank are two different types of tool shanks used in machining technology. The main difference lies in the shape of the shank and the method of tool clamping.

1. Weldon Shank:

  • A Weldon shank is a tool shank that features a flat clamping surface. This flat surface allows for secure tool clamping in a corresponding tool holder. Weldon shank tools are commonly used in milling machines, particularly when using tool holders designed specifically for Weldon shank tools.

2. Cylindrical Shank:

  • A cylindrical shank has a uniformly round cross-section without any flat sides. Cylindrical shank tools are often clamped using collets or hydraulic tool holders. This type of shank is standardized in various sizes and is used in drilling machines, milling machines, and other machining tools.

The primary difference between a Weldon shank and a cylindrical shank is their shape and corresponding clamping method. Weldon shank tools have a flat surface that ensures a secure fit in a special tool holder, whereas cylindrical shank tools have a fully round shank and are typically clamped using drill chucks or collets.

The choice between a Weldon shank and a cylindrical shank depends on the machine type, tool holder, and application. Ensuring compatibility between the tool and the tool holder is essential for safe and efficient machining.