447 Каталог KORLOY 2020 Инструмент и оснастка для станков по металлу Стр.D63

Каталог KORLOY 2020 Инструмент для станков по металлу Стр. D63 0447 Lab2u

Technical Information for Tap O Recommended cutting speeds and cutting fluid For machining cold/hot forging steel and sintered ferrous alloy in high feed, high depth of cut and highly interrupted conditions Excellent resistance to chipping, fracture and thermal cracks Improved surface finish due to optimized cutting edges ISO Workpiece Cutting speed, vc (m/min) Cutting fluid Straight tap Spiral tap Point tap Carbide tap Roll tap Insoluble Water soluble emulsion Semi dry Dry P Low carbon steel 0.25 %C 8 13 8 13 15 25 - 8 13 o △ △ Medium carbon steel 0.25 0.45 %C 7 12 7 12 10 15 - 7 10 o △ △ High carbon steel > 0.45 %C 6 9 6 9 8 13 - 5 8 o △ △ Alloy steel SCM 7 12 7 12 10 15 - 5 8 △ △ △ Quenched and tempered steel 25 45HRC 3 5 3 5 4 6 △ Tool steel SKD 6 9 6 9 7 10 - Cast steel SCM 6 11 6 11 10 15 o M Stainless steel SUS 4 7 5 8 8 13 - 5 10 o Precipitation hardened stainless steel SUS630 SUS631 3 5 3 5 4 6 - K Cast iron GC 10 15 10 20 - o Ductile cast iron GCD 7 12 7 12 10 20 10 20 - - N Copper Cu 6 9 6 11 7 12 10 20 7 12 Brass, brass-cast Bs Bsc 10 15 10 20 15 25 15 25 7 12 Bronze, bronze-cast PB PBC 6 11 6 11 10 20 10 20 7 12 Rolled aluminum AI 10 20 10 20 15 25 - 10 20 o △ - Aluminum-cast, alloyed AC ACD 10 15 10 15 15 20 10 20 10 25 o △ - Magnesium-cast, alloyed MC 7 12 7 12 10 15 10 20 - - Zinc-cast, alloyed ZDC 1 12 7 12 10 15 10 20 7 12 o △ - Thermosetting plastics Bakelite phenol epoxy 10 20 15 25 o Thermoplastics Nylon vinyl chloride 10 20 10 15 10 20 10 20 o Recommended o Applicable △ Usable - unusable Threading Jm 63