280 866-888-9600 gorillamill.com SPEEDS & FEEDS HIGH PERFORMANCE THREADMILLS COOLANT THRU VARIABLE HELIX/INDEX 2xD (METRIC) RECOMMENDED SPEEDS & FEEDS FOR COOLANT THRU VARIABLE HELIX/INDEX 2 X DIAMETER DEEP, METRIC (NPT), CHIMP LOAD PER TOOTH RECOMMENDED SPEEDS & FEEDS FOR COOLANT THRU VARIABLE HELIX/INDEX 2 X DIAMETER DEEP, METRIC (NPT), CHIMP LOAD PER TOOTH TOOL ENTRY SHOULD BE SET AT 60% OF THE FEED RATE. THEN GO TO 100% WHEN ENGAGED WITH MATERIAL. SFM M10 x 1.25 M10 x 1.5 M12 x 1.5 M14 x 1.5 M16 x 1.5 M12 x 1.75 M14 x 2.0 M16 x 2.0 M18 x 2.5 M20 x 2.5 M24 x3.0 Gray Cast Iron 400 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0.0044 Ductile Iron 350 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Soft Steels, (A36,1018,8620,1045) 600 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Alloy Steels, (4340,4140) 450 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 4140 Pre-Hard (28-32 Rc) 300 0.0014 0.0016 0.0018 0.0019 0.0020 0.0020 0.0022 0.0028 0.0030 0.0032 0.0033 Tool Steels (A2,D2,S7) 350 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Die Steels, (H13,P20) 400 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Stainless Steel, (303, 304, 316) 450 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Difficult Stainless Steel, (400 & PH Series) 300 0.0014 0.0016 0.0018 0.0019 0.0020 0.0020 0.0022 0.0028 0.0030 0.0032 0.0033 Stainless Steel (13-8) 200 0.0014 0.0016 0.0018 0.0019 0.0020 0.0020 0.0022 0.0028 0.0030 0.0032 0.0033 High Temp. Alloys 250 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Titanium (6AL4V) 300 0.0020 0.0021 0.0022 0.0023 0.0025 0.0025 0.0031 0.0039 0.0041 0.0042 0. 0044 Inconel 718 200 0.0014 0.0016 0.0018 0.0019 0.0020 0.0020 0.0022 0.0028 0.0030 0.0032 0.0033 Inconel 625 200 0.0014 0.0016 0.0018 0.0019 0.0020 0.0020 0.0022 0.0028 0.0030 0.0032 0.0033 TOOL ENTRY SHOULD BE SET AT 60% OF THE FEED RATE. THEN GO TO 100% WHEN ENGAGED WITH MATERIAL. SFM M3 x 0.5 M4 x 0.5 M5 x 0.5 M4 x 0.7 M6 x .75 M5 x 0.8 M6 x 1.0 M8 x 1.0 M10 x 1.0 M12 x 1.0 M8 x 1.25 Gray Cast Iron 400 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Ductile Iron 350 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Soft Steels, (A36,1018,8620,1045) 600 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Alloy Steels, (4340,4140) 450 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 4140 Pre-Hard (28-32 Rc) 300 0.0003 0.0003 0.0004 0.0004 0.0005 0.0005 0.0007 0.0009 0.0010 0.0011 0.0011 Tool Steels (A2,D2,S7) 350 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Die Steels, (H13,P20) 400 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Stainless Steel, (303, 304, 316) 450 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Difficult Stainless Steel, (400 & PH Series) 300 0.0003 0.0003 0.0004 0.0004 0.0005 0.0005 0.0007 0.0009 0.0010 0.0011 0.0011 Stainless Steel (13-8) 200 0.0003 0.0003 0.0004 0.0004 0.0005 0.0005 0.0007 0.0009 0.0010 0.0011 0.0011 High Temp. Alloys 250 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Titanium (6AL4V) 300 0.0005 0.0006 0.0006 0.0006 0.0008 0.0010 0.0014 0.0015 0.0016 0.0018 0.0018 Inconel 718 200 0.0003 0.0003 0.0004 0.0004 0.0005 0.0005 0.0007 0.0009 0.0010 0.0011 0.0011 Inconel 625 200 0.0003 0.0003 0.0004 0.0004 0.0005 0.0005 0.0007 0.0009 0.0010 0.0011 0.0011 If the RPM’s are to high for your machine, run max RPM you are comfortable with. Note that these Chip Loads are Chip Loads Per Tooth. SFM should be calculated on minor diameter. CLICK HERE FOR ONLINE SPEEDS & FEEDS CALCULATOR
2024 Gorilla Mill Spring Catalog
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