Contact Information: The document provides contact details for Dormer Pramet offices worldwide, including phone numbers, fax numbers, and email addresses for countries such as Argentina, Australia, Austria, Belgium, Brazil, Canada, China, and many more.
Brand Message: Dormer Pramet emphasizes the reliability of their products through the metaphor of a clean and uncomplicated chip, which symbolizes the quality and consistency of their work.
Product Catalog: The document includes a detailed catalog of products with codes and specifications. It lists various materials and their corresponding standards, depth, point angle, coating, shank standard, and coolant requirements. The catalog is organized by product codes and includes a range of materials such as magnetic soft steel, structural steel, alloy steel, stainless steel, titanium, nickel, copper, and various plastics.
Application Guidelines: The document provides guidelines for the application of their products, indicating which materials are excellent or good for specific applications. It includes examples of peripheral speed in meters per minute with a tolerance of +/- 10%.
Overview: This document provides detailed specifications for various types of drills, including their dimensions and standards they conform to, such as DIN 1897 and DIN 1809. The document includes tables listing drill sizes, lengths, and corresponding codes.
Specifications: The document lists drills with specifications such as diameter (d1) in both millimeters and inches, decimal inch equivalents, and lengths (l1 and l2) in millimeters. Each drill type is associated with a specific code (e.g., A119, A123, A120, etc.).
Drill Types:- Pointing Drill: Conforms to DIN 1898, with various sizes listed.
- Stub Drill - Double Ended Sheet Metal Drill: Conforms to DIN 1897, available in sizes ranging from 3/32 inch to 1/4 inch.
- Stub Drill Bright: Available below 1.0mm and up to 2.9mm, with a 118° point angle.
- ADX Stub Drill: Features a series of extra short drills with sizes ranging from 3.00mm to 13.00mm.
- Stub Drill with Brazed Carbide Tip: Conforms to DIN 1809, available in sizes from 3.00mm to 16.00mm.
Key Data from Tables: The tables provide a comprehensive list of drill sizes, including:
- Diameter in mm and inch.
- Decimal inch equivalent.
- Length specifications (l1 and l2).
- Corresponding drill codes for easy identification.
Standards and Recommendations: The document emphasizes adherence to DIN standards for drill dimensions and specifications, ensuring compatibility and quality in manufacturing and application.
Overview: The document provides detailed specifications for various types of drills, including micro drills, PFX stub drills, and jobber drills, with a focus on dimensions and standards according to DIN 1809.
Specifications:- Micro Drills: These are extra short drills with carbide tips, available in diameters ranging from 0.15 mm to 1.40 mm. They are designed for precision work and are specified with both metric and inch measurements.
- PFX Stub Drills: These drills are available in a wide range of sizes from 1.00 mm to 20.00 mm. They are characterized by their short length and are suitable for applications requiring rigidity and precision.
- Jobber Drills: These drills are available in various series, including A002, A002S, A100, and A101. They feature split points and are available in bright and TiN tipped versions. Sizes range from 0.20 mm to 20.00 mm.
Key Parameters:- Diameter (d1): Specified in both metric (mm) and decimal inch formats.
- Length (l1 and l2): Overall length and flute length are provided for each drill size.
- Standards: Drills conform to DIN 1809 specifications, ensuring compatibility and performance in standardized applications.
Recommendations:- Choose the appropriate drill type and size based on the material and precision required for the task.
- Consider the coating (e.g., TiN) for enhanced durability and performance in specific applications.
Specifications:
The document outlines various types of center drill sets, identified by codes such as A296200 and A296225, with specifications like point angles of 118° and 120° according to DIN333A and BS328 standards respectively. It includes a detailed list of set types, quantities, and diameters.
Materials and Applications:
The document provides a comprehensive list of materials suitable for different applications, including magnetic soft steel, structural steel, plain carbon steel, alloy steel, stainless steel, titanium, nickel, copper, brass, bronze, aluminum, and various plastics. Each material is described with its properties and potential applications.
Standards and Tolerances:
It mentions standards for shank, flute style, tolerance, and taper gradient. The document also specifies the peripheral speed in meters per minute with a tolerance of +/- 10% for different applications.
Performance Ratings:
The document categorizes the performance of drills as excellent or good for specific applications, providing examples and codes for easy reference.
Tables and Data:
Several tables list drill set codes, diameter ranges, and corresponding ISO standards. These tables are crucial for selecting the appropriate drill set based on specific requirements.
Recommendations:
The document suggests best practices for selecting drill sets based on material type and application needs, ensuring optimal performance and longevity of the tools.
Overview: This document provides detailed specifications and guidelines for thread mills, specifically focusing on G(BSP) and NPT thread mills with a 10° spiral flute for both internal and external threading. It includes technical data, material compatibility, and application recommendations.
Specifications: The document lists various thread mill models with their respective dimensions, such as diameter (d1, d2), length (l1, l2), and number of flutes (z). It covers a range of sizes from 1/8 to 3 inches for G(BSP) and 1/8 to 2 inches for NPT thread mills.
Material Compatibility: The document outlines the types of materials suitable for threading, including magnetic soft steel, structural steel, plain carbon steel, alloy steel, stainless steel, titanium, nickel, copper, brass, bronze, and various plastics. Each material type is described with its corresponding properties and applications.
Application Recommendations: The document provides guidance on the optimal use of thread mills for different materials, indicating which are excellent or good for specific applications. It also includes examples of peripheral speed in meters per minute, with a tolerance of +/- 10%.
Technical Codes and Standards: Various technical codes are listed, indicating the range of thread sizes and the corresponding ISO standards. The document also includes a section on the geometry and direction of flutes, coating types, and coolant requirements.
Performance Indicators: The document categorizes performance based on application suitability, with indicators for excellent and good applications. It also provides examples of peripheral speed and its impact on threading efficiency.
Specifications:
The document provides detailed specifications for various machine taps, including dimensions such as pitch (P), length (l1, l2, l3, l4), diameter (d2), and other parameters like a and z. The taps are categorized by their model numbers, such as E513, EP10, E299, E384, and E011, each with specific size ranges and features.
Procedures:
The document outlines the use of machine taps with straight flutes and spiral points, indicating their application in machining processes. It specifies the material composition, such as HSS-E, and notes the availability of stock.
Standards:
Each tap model adheres to specific standards, with details on their design and intended use. The document includes information on the compatibility of taps with different thread sizes and materials.
Recommendations:
Recommendations are provided for selecting the appropriate tap based on the material and thread requirements. The document suggests using specific models for different machining tasks to ensure optimal performance.
Data Summary:
The document includes tables listing various tap models with their corresponding specifications. Key data points include the pitch, length, diameter, and other critical dimensions necessary for selecting the right tap for specific applications.
Overview: This document provides detailed specifications and descriptions of various machine taps, including BA, G(BSP), Rc, and NPT types. It includes technical data such as dimensions, thread sizes, and material specifications.
Sections:
- BA Machine Taps: These taps are available in straight flute and spiral point designs. The document lists specifications for different sizes, including diameter, length, and pitch.
- G(BSP) Taps: This section covers hand taps and machine taps with straight and spiral flutes. It includes technical details such as thread per inch (TPI), nominal diameter, and overall length.
- Rc Machine Taps: Specifications for Rc taps include straight flute designs with details on dimensions and thread sizes.
- NPT Machine Taps: The document provides specifications for NPT taps, including straight flute designs, with details on TPI, diameter, and length.
Key Specifications:
- Dimensions: Each tap type includes detailed measurements such as nominal diameter, overall length, and flute length.
- Thread Sizes: The document specifies thread sizes for each tap type, including TPI for G(BSP) and NPT taps.
- Material: Some taps are supplied in HSS-E material until new stock is available.
Recommendations: The document suggests using specific tap types based on the application requirements, such as straight flute for general use and spiral flute for more efficient chip removal.
Overview: This document provides detailed specifications for various types of end mills used in machining processes. The document is structured into sections based on the type of
end mill, including finishing, roughing, corner radius, and ball-nosed end mills.
1. Finishing End Mills:- These are designed for high precision and smooth surface finishes.
- Specifications include diameter (d1), cutting edge length (l2), overall length (l1), and number of flutes (z).
- Common diameters range from 3.00 mm to 20.00 mm.
2. Roughing End Mills:- Used for removing large amounts of material quickly.
- Features include a roughing profile with a specific chamfer angle (Ch).
- Diameter ranges from 6.00 mm to 20.00 mm.
3. Corner Radius End Mills:- These mills have a rounded cutting edge to reduce chipping and extend tool life.
- Specifications include corner radius (r) and diameter (d1).
- Available in diameters from 3.00 mm to 20.00 mm.
4. Ball-Nosed End Mills:- Ideal for 3D contouring and complex surface machining.
- Features a hemispherical end for smooth cutting.
- Diameter ranges from 1.50 mm to 16.00 mm.
Key Parameters:- Diameter (d1): Determines the size of the cut.
- Corner Radius (r): Affects the finish and tool life.
- Overall Length (l1) and Cutting Length (l2): Influence the depth of cut and reach.
- Number of Flutes (z): Impacts the feed rate and surface finish.
Conclusion: The document provides comprehensive data on various end mills, essential for selecting the right tool for specific machining tasks. Understanding these specifications helps in optimizing machining processes and achieving desired outcomes.
Rotary Burr Specifications:
- Various types of rotary burrs are detailed, including flame brazed, countersink brazed, and ball-nosed cone brazed, with specifications for diameters (d1), shank diameters (d2), and lengths (l1, l2).
- Tolerances for d2 are specified as h6 or h7.
Product Codes and Dimensions:
- Each product type (e.g., P815, P817, P819) is associated with specific dimensions and product codes.
- The document lists dimensions for each type, such as diameter ranges and lengths.
Rotary Burr Sets:
- Sets like P880 and P890 are described, detailing the styles, number of items, and diameters included in each set.
Material and Application Guidelines:
- Materials suitable for use with these tools include various steels, titanium, nickel, copper, and plastics.
- Applications are categorized by material type, with recommendations for peripheral speeds and cutting directions.
Parting Off Inserts:
- Inserts such as K300 to K305 are specified for parting off operations, with dimensions and product codes provided.
- The document includes a range of insert sizes and applications.
Specifications:
This document provides detailed specifications for cutting speeds, hardness, tensile strength, tolerances, and reaming procedures. It includes tables for cutting speeds in m/min and feet/min, hardness scales (Vickers, Rockwell, Brinell), and tolerances for various diameters.
Procedures:
The document outlines procedures for drilling and reaming, emphasizing the importance of selecting appropriate tools, maintaining stability, and using correct coolants and lubricants. It provides strategies for deep hole drilling and reaming, including series drilling, peck drilling, and single pass drilling.
Standards and Recommendations:
Recommendations include ensuring proper tool fit, using suitable coolants, and maintaining tool sharpness. The document advises on stock removal for reaming and provides guidelines for achieving desired hole tolerances.
Troubleshooting:
Common problems in drilling and reaming are addressed with causes and remedies. Issues such as broken tangs, rapid tool wear, and incorrect hole sizes are discussed, with solutions like adjusting feed rates, regrinding tools, and ensuring proper tool alignment.
Key Data from Tables:
- Cutting speeds range from 32 to 562 m/min.
- Hardness values are provided in multiple scales, with Vickers ranging from 440 to 940.
- Tolerance limits are specified for various diameters, with examples of hole and reamer tolerances.
Critical Information:
- Ensure maximum stability during drilling to prevent damage.
- Use the shortest possible drill for the application.
- Regular regrinding of tools is essential for maintaining accuracy and tool life.
- Proper coolant supply is crucial, especially at the drill point.
This document serves as a comprehensive guide for machining operations, providing essential data and best practices for achieving optimal results.
Thread Milling- Thread milling involves generating threads using a milling cutter with specific thread geometry. It requires a CNC machine capable of circular paths.
- Benefits include increased tool life, small chip production, and the ability to adjust tolerances using exact coordinates.
- Thread mills can machine a variety of materials and produce both right and left-hand threads.
Choosing Your Tool- Thread milling cutters are identified by item codes based on type, diameter, and pitch.
- Ensure correct thread dimensions by consulting the catalogue.
Programming with Rprg- Use radius correction for easy thread tolerance adjustment.
- Rprg value, printed on the cutter shank, should be entered in the tool memory offset.
- Use the correct cutting data and recommended drill size for the thread diameter.
Tapping- Select the correct tap design for the material and hole type.
- Ensure the component is securely clamped to prevent tap breakage.
- Use appropriate cutting speed and fluid, and ensure correct feed value in NC applications.
Troubleshooting Tapping- Oversize threads may result from incorrect tolerance or axial feed rate.
- Undersize threads can be due to wrong tap type or lack of lubrication.
- Chipping and breakage issues can be resolved by adjusting feed rates and using proper lubrication.
Milling- Milling generates machined surfaces by removing material with a rotating cutter.
- Types of milling include peripheral, face, and end milling, each with specific cutter orientations and applications.
Troubleshooting Milling- Breakage and wear can be mitigated by adjusting feed rates and using appropriate tools.
- Chattering and poor surface finish can be addressed by correcting feed and speed, and ensuring tool and workpiece rigidity.
Carbide Burrs- Used for preparing and finishing components, carbide burrs are mounted in die-grinders.
- Features include toughened shanks, special brazing elements, and material-specific geometries.
Safety and Recommendations- Always disconnect the die grinder before changing burrs and use appropriate protective equipment.
- Routine maintenance of die grinders is crucial to prevent issues like chipping and clogging.
General InformationThis document provides technical guidelines on drilling, boring, and thread milling processes. It includes problem-solving strategies, tool specifications, and recommendations for optimal machining performance.
DrillingDrilling is categorized into intermittent and single-pass drilling, with specifications on drill types and speeds. Common issues include broken or twisted
drill bits, which can be resolved by ensuring proper alignment and reducing feed rates. Excessive speed can cause worn cutting edges, while insufficient feed can lead to spiral hole finishes. Proper tool support and alignment are crucial.
BoringBoring requires selecting the right chuck type and ensuring pre-drilled holes have the correct diameter. The document emphasizes the importance of maintaining tool sharpness and using appropriate lubricants. It provides guidelines for material removal based on hole size and material type.
TolerancesThe document outlines tolerance limits for standardized drill diameters and provides a guide for special mandrel dimensions. It includes tables for hole and mandrel tolerances, emphasizing the importance of accurate re-sharpening for tool longevity and hole quality.
Thread MillingThread milling involves creating threads through circular interpolation using CNC machines. It offers advantages such as improved tool life and the ability to machine a variety of materials. The document provides recommendations for programming and tool selection, including the use of Rprg values for tolerance adjustments.
TappingSuccessful tapping depends on selecting the correct tap geometry and ensuring proper component fixation. The document advises on pre-drill sizes, cutting speeds, and lubrication. It also provides solutions for common tapping issues, such as over or under-dimensioned threads, and emphasizes the importance of using the correct tap type for the application.
Problem SolvingFor both drilling and boring, the document lists common problems, their causes, and solutions. It highlights the importance of proper tool maintenance, alignment, and the use of appropriate cutting conditions to prevent tool wear and achieve desired hole dimensions.
General Recommendations for Reaming:
1. Ensure reamers are well-sharpened, focusing on the chamfer and entry cone.
2. Check reamer concentricity before sharpening.
3. Avoid chip clogging in reamer flutes.
4. Use compressed air for dry reaming of grey cast iron.
Material Removal Recommendations:
Material removal depends on the application material and desired surface finish. Specific recommendations are provided in tables.
Tolerance and Diameter Specifications:
1. Standard reamer diameters are measured on the guide land behind the chamfer.
2. Tolerances are defined by DIN 1420 for H7 bores.
3. For special reamers, use specific formulas to calculate tolerances.
Common Reaming Issues and Solutions:
1. Broken or twisted tenon: Ensure proper contact between the collet and shank.
2. Rapid tool wear: Increase material removal.
3. Oversized holes: Re-sharpen according to specifications.
4. Undersized holes: Increase material removal.
5. Oval or conical holes: Repair machine spindle or use a guide reamer.
Interpolation Milling:
1. Interpolation milling creates threads using a CNC machine.
2. Benefits include increased tool life, precise tolerance, and versatility in threading different sizes.
3. Use the correct tool code for ordering.
General Recommendations for Thread Milling:
1. Use the Rprg value for easy tolerance adjustment.
2. Ensure correct cutting data and drill size.
3. Use compressed air for chip evacuation in dry machining.
Tapping Recommendations:
1. Select the appropriate tap for the material and hole type.
2. Ensure workpiece clamping rigidity.
3. Use the correct drill diameter and cutting speed.
4. Use suitable cutting fluid.
5. On CNC machines, ensure correct pitch value.
Common Tapping Issues and Solutions:
1. Oversized threads: Choose a tap with a lower tolerance.
2. Undersized threads: Use a tap with a higher tolerance.
3. Chip blockage: Use proper lubrication and adjust drilling depth.
4. Tap breakage: Use a new tap or re-sharpen the old one.
5. Rapid wear: Use a tap with a lower cutting angle and proper lubrication.
General Information on Tapping and Milling
Tapping Issues and Solutions:
1. Lubrication: Proper lubrication is essential to avoid built-up edges. Refer to the lubricants section.
2. Surface Treatment: Select a tap with the appropriate treatment.
3. Tapping Speed: Follow the recommendations in the Catalogue/Product Selector for optimal speed.
Milling Recommendations:
Milling is a process that achieves a surface finish by progressively removing material from the workpiece at a relatively low feed rate with a cutter rotating at a comparatively high speed. The main characteristic of milling is the removal of material in the form of individual chips by each tooth.
Types of Milling:
1. Peripheral Milling: The cutter's rotation axis is parallel to the workpiece surface. The cutter has teeth around its circumference, each acting as a single cutting tool.
2. End Milling: The cutter is mounted on a spindle with a rotation axis perpendicular to the workpiece surface.
3. Finishing Milling: The cutter usually rotates on a vertical axis of the workpiece.
Applications:
Different applications require different engagement levels of the cutter in the workpiece. The Dormer catalogue contains icons describing various applications.
Milling Problems and Solutions:
1. Breakage: Reduce feed per tooth if chip removal is excessive.
2. Wear: Use a shorter cutter if the cutting length is too long.
3. Vibration: Reduce RPM or increase it if the cutting speed is too low.
4. Short Tool Life: Consult the Catalogue or Selector for the correct alternative if the material is resistant.
Carbide Cutters:
Carbide cutters are commonly used for preparation and finishing in various materials. They are generally used manually, mounted in a pneumatic grinder.
Characteristics and Advantages:
1. Hardened steel shank improves rigidity and reduces bending or vibration risk.
2. High machining precision of the shank improves clamping quality.
3. Special brazing elements prevent breakage at high temperatures.
4. Universal cross-tooth geometry suits various materials and applications.
5. Available with TiAlN coating for increased longevity in abrasive materials.
Safety Recommendations:
1. High-speed rotating tools are dangerous if misused.
2. Always disconnect the grinder from the air supply before changing the cutter.
3. Use appropriate protective equipment and ensure nearby personnel are also protected.
Problem Resolution with Carbide Cutters:
1. Chipping: Slow working speed may cause rebound.
2. Clogging: Incorrect geometry choice for the material.
3. Premature Wear: Excessive working speed for the cutter size and material.
Contact Information:
Contact details for various countries are provided for further assistance.