
9 HM Milling with ≥ 50% radial immersion SOLID HSS MILLS – FEED PER TOOTH TABLE 1 2 3 Feed per tooth (IPT or inch/tooth) depending on the working conditions DC DC DC DC DC DC APMXAPMX APMX DC DC DC it might be necessary to adjust these FFW FFW =FFW = 1×DC1×DC = 1×DC values ± 25%. APMXAPMX APMX APMXAPMX APMX FFW FFW =FFW = 0.5×DC = 0.5×DC 0.5×DC FFW FFW = 0.5×DC =FFW 0.5×DCONLY if plunging into solid material = 0.5×DC with a centre cutting end mill the values in this table should be APMX APMX APMX considered as IPR (feed in inch per APMX EFWAPMX APMX = DC=EFW EFW DC = DC EFW EFW 0.5×DC ≥EFW ≥ 0.5×DC ≥ 0.5×DC APMX APMX EFWAPMX EFW = DC=EFW DC = DC revolution). How to use this table to find the feed per tooth (IPT): FOR HSS, 1. Find your Alpha Code on the product page (example: 157C, “C“ is the Alpha Code). HSS-E AND 2. Find the closest diameter for your cutting application in the top row of the table. HSS-E-PM MILLING 3. Find your Alpha Code in the left column of the table. CUTTERS ONLY 4. The intersection (cell) of the Diameter and Alpha Code is the feed per tooth (IPT). ø DC [inch] 1/16 3/32 1/8 5/32 3/16 7/32 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1 1/8 1 1/4 1 1/2 .0625 .0938 .1250 .1563 .1875 .2188 .2500 .3125 .3750 .4375 .5000 .5625 .6250 .7500 .8750 1,0000 1,1250 1,2500 1,5000 A .0001 .0001 .0001 .0002 .0002 .0002 .0002 .0003 .0004 .0004 .0005 .0006 .0006 .0007 .0008 .0009 .0011 .0012 .0013 B .0001 .0002 .0002 .0002 .0002 .0002 .0003 .0004 .0004 .0005 .0006 .0007 .0007 .0009 .0011 .0012 .0014 .0015 .0017 C .0002 .0002 .0002 .0003 .0003 .0003 .0004 .0004 .0005 .0006 .0007 .0008 .0009 .0011 .0013 .0015 .0017 .0019 .0020 D .0002 .0002 .0002 .0004 .0004 .0004 .0004 .0006 .0007 .0008 .0009 .0010 .0011 .0013 .0017 .0019 .0021 .0023 .0026 Feed rates E .0002 .0003 .0003 .0004 .0005 .0005 .0006 .0007 .0008 .0010 .0011 .0013 .0014 .0017 .0020 .0023 .0027 .0029 .0032 F .0003 .0003 .0004 .0005 .0006 .0006 .0007 .0008 .0010 .0012 .0014 .0016 .0017 .0020 .0024 .0028 .0032 .0035 .0039 G .0004 .0004 .0005 .0006 .0007 .0007 .0008 .0009 .0012 .0014 .0017 .0019 .0020 .0024 .0030 .0033 .0039 .0042 .0046 H .0004 .0005 .0006 .0007 .0008 .0008 .0009 .0011 .0014 .0017 .0020 .0022 .0024 .0029 .0035 .0040 .0046 .0050 .0056 I .0005 .0006 .0007 .0009 .0010 .0010 .0011 .0014 .0017 .0020 .0024 .0027 .0030 .0035 .0043 .0048 .0056 .0060 .0067 J .0006 .0007 .0008 .0011 .0012 .0012 .0014 .0017 .0020 .0024 .0028 .0032 .0035 .0042 .0051 .0058 .0067 .0072 .0080 This table is valid for end mills and shell mills. 195