SGS-Speeds-Feeds-Z1

Product catalog summary

Speed & Feed Recommendations for End Mills

This document provides detailed speed and feed recommendations for various materials when using end mills from series Z1, Z1B, and Z16CR. The recommendations are categorized based on material type, hardness, and operation type (profile or slot milling).

1. Carbon Steels: For carbon steels like 1018, 1040, and others with a Brinell hardness ≤ 275, the recommended speed for profile milling is 555 RPM with a feed rate of 25.8 to 29.7 IPM depending on the diameter. For slot milling, the speed is 440 RPM with a feed rate of 20.4 to 23.5 IPM.

2. Alloy Steels: For alloy steels such as 4140 and 4150 with a hardness ≤ 375, profile milling should be done at 315 RPM with a feed rate of 10.8 to 13.0 IPM. Slot milling is recommended at 250 RPM with a feed rate of 8.6 to 10.3 IPM.

3. Tool Steels: For tool steels like A2 and D2 with a hardness ≤ 375, profile milling is recommended at 185 RPM with a feed rate of 4.5 to 5.1 IPM. Slot milling should be done at 145 RPM with a feed rate of 3.5 to 4.0 IPM.

4. Cast Irons: For low and medium alloy cast irons with a hardness ≤ 220, profile milling is recommended at 445 RPM with a feed rate of 19.0 to 23.1 IPM. For high alloy cast irons with hardness > 220 and ≤ 260, profile milling should be done at 340 RPM with a feed rate of 12.5 to 13.0 IPM.

5. Stainless Steels: For free machining stainless steels with a hardness ≤ 275, profile milling is recommended at 490 RPM with a feed rate of 18.0 to 18.7 IPM. For difficult stainless steels like 304 and 316, profile milling should be done at 340 RPM with a feed rate of 8.3 to 10.4 IPM.

6. Super Alloys: For super alloys like Inconel and Monel with a hardness ≤ 300, profile milling is recommended at 80 RPM with a feed rate of 2.2 to 1.8 IPM. For harder super alloys, profile milling should be done at 62 RPM with a feed rate of 0.8 to 0.9 IPM.

7. Titanium Alloys: For titanium alloys with a hardness ≤ 350, profile milling is recommended at 215 RPM with a feed rate of 5.3 to 5.9 IPM. For more difficult titanium alloys, profile milling should be done at 75 RPM with a feed rate of 1.8 to 2.1 IPM.

General Recommendations: It is advised to reduce speed and feed for materials harder than those listed. Additionally, when finish milling, reduce feed and Ae to a maximum of 0.02 x D1. For complete technical information, refer to the SGS Tool Wizard at www.sgstool.com.

Catalog excerpts

Hardness BRINELL CAST IRONS (LOW & MEDIuM ALLOY) < 220 Gray, Malleable, Ductile CAST IRONS (HIGH ALLOY) Gray, Malleable, Ductile continued on next page

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Speed & Feed Recommendations Hardness BRINELL STAINLESS STEELS (Difficult) 304, 304L,316, 316L Profile Titanium AlloyS Pure Ttanium, Ti6Al4V, Ti6Al2Sn4Zr2Mo, Ti4Al4Mo2Sn0.5Si Profile Super Alloys (Nickel, Cobalt, Iron Base) Inconel 718, 750X, Incoly 925, Waspaloy, Hastelloy, Rene Profile Super Alloys (Nickel, Cobalt, Iron Base) Inconel 601, 617, 625, Incoly 800, Monel 400 Profile STAINLESS STEELS (PH) 13-8 PH,15-5PH,17-4 PH, Custom 450 rpm = sfm x 3.82 / D1 ipm = (inch / flute) x 4 x rpm reduce speed and feed for materials harder than listed reduce feed and Ae when finish milling (.02 x D1 maximum)...

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