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Single-Sided APET/XPET 90° Milling Series

Single-Sided APET/XPET 90° Milling Series
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Single-Sided APET/XPET 90° Milling Series

Product catalog summary
Specifications and Material Properties
The document provides a detailed comparison of various carbide grades used in machining, focusing on their toughness, wear resistance, heat resistance, resistance to built-up edge (BUE), feed capability, and coolant capability. Key grades discussed include DMP35, DMK35, DMK30, DMP30, and DMK25, each with specific strengths and weaknesses in different machining conditions.
Insert Selection and Coating Descriptions
The document outlines the selection criteria for APET/XPET inserts, emphasizing the importance of choosing the right grade based on the material being machined. Coatings such as AlTiN and HM are recommended for enhancing performance in high-temperature and tough material applications.
Application Information and Recommendations
Guidelines are provided for optimizing the use of square shoulder milling tools, including recommendations for tool holders, feed rates, and the use of coolant. The document advises against using coolant in most milling applications to avoid thermal shock and suggests using air pressure for cooling and chip evacuation.
Troubleshooting and Optimization
Common issues such as insert wear, chipping, and poor finish are addressed with potential causes and solutions. The document also provides formulas for calculating RPM and feed rates, emphasizing the importance of adhering to recommended parameters for optimal performance.
Helical Interpolation and Hole Making
The technique of helical interpolation is discussed as a method for efficient large-diameter hole making, allowing for flexibility in hole size without the need for pre-drilling.
Cutting Speeds and Feeds
A comprehensive chart provides recommended cutting speeds and feeds for various materials and grades, highlighting the importance of adjusting parameters based on specific machining conditions to maximize tool life and productivity.
Specifications:
The document provides detailed specifications for modular extensions and torque wrench systems. It includes recommended feed per tooth (FPT) values for different diameters (10mm, 12mm, 16mm) and various geometries (XPET, APET). The extensions are universal, compatible with Dapra and competitors' modular heads, and feature cylindrical inch shanks for adaptation to various holders. They are available in sizes to accommodate head sizes from 3/4” to 1-1/2”.
Procedures:
The document outlines the use of carbide core modular extensions, which enhance vibration dampening and rigidity. It also describes the use of heavy-metal modular extensions for increased resistance to vibration and deflection. The extensions are equipped with thru-coolant for efficient delivery of air or coolant.
Norms and Recommendations:
The document recommends using high-performance milling chucks or heat/mechanical shrink holders for optimal rigidity and reduced deflection. It also suggests using the torque wrench system for precise tightening without binding or stripping screws.
Key Data from Tables:
The tables provide part numbers, shank diameters, effective lengths, and thread specifications for various modular extensions. For example, the CC-ME-0750-2500-5500-C has a shank diameter of 0.750” and an effective length of 2.5”.
Torque Wrench Systems:
The torque wrench system offers accurate torque application with two handle styles and three bit set sizes. It features color-coded adapters and bits for quick identification, ensuring precise and repeatable insert loading and clamping.
Critical Information:
The document emphasizes the importance of using the correct torque to avoid over-tightening and stripping screws. It highlights the benefits of using Dapra's torque system for secure grip and leverage compared to typical flag-style wrenches.
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Catalog excerpts

Single-Sided APET/XPET 90° Milling Series-1

90° SQUARE SHOULDER MILLS APET/XPET | SINGLE-SIDED Single-Sided APET/XPET 90° Milling Series Square Shoulder EXTREMEMetal Removal Nickel plating provides a harder casing for improved pocket durability and resistance to chip galling Cutter bodies machined from hardened steel to minimize runout and create excellent surface finishes at high feed rates Long-reach tools available with Carbide Core for enhanced rigidity and reduced deflection Precision cutter and insert combination provides longer tool life Deep gullets provide efficient chip evacuation, even on the heaviest cuts Inserts offered in both pressed and lapped versions for a combination of economy and performance

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Single-Sided APET/XPET 90° Milling Series-2

The most economical, high-performance inserts available! • PET and XPET inserts are manufactured using CNC press technology, A providing reliable accuracy and repeatability. • Feature a high positive pressed cutting geometry for aggressive material removal rates and low horsepower consumption. APET & XPET CNC Pressed Inserts • ave a strong edge preparation for heavy chiploads. H • re available in a large variety of corner radii with a true tangential blend. A Insert Geometry Selection APET Geometry XPET Geometry Positive/negative cutting edge with T-land Cutting Edge Positive cutting edge with...

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Single-Sided APET/XPET 90° Milling Series-3

90° SQUARE SHOULDER MILLS Cutter Bodies for 10mm APET/XPET Inserts Dapra is in the process of transitioning to all thru-coolant tooling for SSEM, SSER, and CC-SSER cutter bodies. Solid bodies are available while stock lasts, after which only thru-coolant versions will be available. “C” denotes coolant thru tool. 10MM END MILLS APET/XPET | SINGLE-SIDED Overall Length Effective Length 1.25” cutters and smaller are available without Weldon flats in limited supplies. Add WOF to end of part number when ordering. OD * Cylindrical shank – no Weldon flats. Overall Length Effective Length 10MM EXTENDED-REACH...

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Single-Sided APET/XPET 90° Milling Series-4

(old versions for comparison) versions for comparison) (old XPHT.. Insert Size XPET Cutting Edge (Honed Edge) High Shear Fancier “cutaway” style Fancier “cutaway” style Available Coated Grades (EDP) XPET Inserts are ideal for high-performance milling of stainless steels and nonferrous materials such as copper alloys and aluminum. Also good for gummy, softer, free-machining steels. XPET-ALU lapped inserts feature a ground and lapped rake face for machining aluminum and copper alloys, bronze, brass, etc. Built-up edge is virtually eliminated. .380” .250” .031” .380” .250” .062” REQ = Available...

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Single-Sided APET/XPET 90° Milling Series-5

90° SQUARE SHOULDER MILLS Cutter Bodies for 12mm APET/XPET Inserts Dapra is in the process of transitioning to all thru-coolant tooling for SSEM, SSER, and CC-SSER cutter bodies. Solid bodies are available while stock lasts, after which only thru-coolant versions will be available. “C” denotes coolant thru tool. 12MM END MILLS APET/XPET | SINGLE-SIDED Overall Length Effective Length Overall Length Effective Length * Cylindrical shank – no Weldon flats. L 12MM EXTENDED-REACH END MILLS WITH CARBIDE CORE R Overall Length Effective Length 12mm Shell Mills 12MM STANDARD-PITCH SHELL MILLS Overall Length...

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Single-Sided APET/XPET 90° Milling Series-6

(old versions for comparison) versions for comparison) (old XPHT.. Insert Size XPET Cutting Edge (Honed Edge) High Shear Fancier “cutaway” style Fancier “cutaway” style Available Coated Grades (EDP) XPET Inserts are ideal for high-performance milling of stainless steels and nonferrous materials such as copper alloys and aluminum. Also good for gummy, softer, free-machining steels. XPET-ALU lapped inserts feature a ground and lapped rake face for machining aluminum and copper alloys, bronze, brass, etc. Built-up edge is virtually eliminated. .472” .312” .031” .472” .312” .062” .472” .312” .120”...

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Single-Sided APET/XPET 90° Milling Series-7

90° SQUARE SHOULDER MILLS Cutter Bodies for 16mm APET/XPET Inserts Dapra is in the process of transitioning to all thru-coolant tooling for SSEM, SSER, and CC-SSER cutter bodies. Solid bodies are available while stock lasts, after which only thru-coolant versions will be available. “C” denotes coolant thru tool. 16MM END MILLS APET/XPET | SINGLE-SIDED Overall Length Effective Length Overall Length Effective Length * Cylindrical shank – no Weldon flats. R Overall Length Effective Length

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Single-Sided APET/XPET 90° Milling Series-8

Cutter Bodies for 16mm APET/XPET Inserts 16mm Shell Mills 16MM STANDARD-PITCH SHELL MILLS Overall Length Socket Head Cap Screw Overall Length Socket Head Cap Screw 16MM COARSE-PITCH SHELL MILLS EDP

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Single-Sided APET/XPET 90° Milling Series-9

90° SQUARE SHOULDER MILLS (old versions for comparison) versions for comparison) (old 16mm APET/XPET Inserts and Grades Left to right: T, N, D L XPET.. Insert Size Fancier “cutaway” style Fancier “cutaway” style APET Inserts feature a high-strength cutting edge and are ideal for high-performance milling of most harder steels and cast irons. XPET Cutting Edge (Honed Edge) High Shear APET Cutting Edge (T-Land Edge) High Strength XPET Inserts are ideal for high-performance milling of stainless steels and nonferrous materials such as copper alloys and aluminum. Also good for gummy, softer, free-machining...

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Single-Sided APET/XPET 90° Milling Series-10

16mm APET/XPET Inserts and Grades Left to right: T, N, D XPET Cutting Edge (Honed Edge) High Shear Fancier “cutaway” style Available Coated Grades (EDP) XPET-ALU lapped inserts feature a ground and lapped rake face for machining aluminum and copper alloys, bronze, brass, etc. Built-up edge is virtually eliminated. .625” .625” .625” .625” .625” PCD-tipped inserts provide the ultimate in wear resistance for high-volume aluminum or graphite milling. Available in 1/32” corner radius only. .225” leg length for the PCD tip. REQ = Available upon request. Older coatings available upon request; may have...

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Single-Sided APET/XPET 90° Milling Series-11

90° SQUARE SHOULDER MILLS APET/XPET | SINGLE-SIDED Utility Cutters Make the most of your APET and XPET Inserts! BCSM 15° Back-Corner Shell Mills BCSM shell mills allow the unused corner of the APET/XPET inserts to be used for general face milling – this means you get 4 usable edges per insert instead of 2! B BCSM 15° BACK-CORNER SHELL MILLS D Cutting Diameter Overall Length “C” denotes coolant thru tool. BCSM Back Corner Shell Mill CMEM Chamfering End Mills CMEM end mills are perfect for chamfer milling, providing a free-cutting positive geometry for both 30° and 45° chamfering. CMEM CHAMFERING...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.