Общий каталог Widia 2017 - страница 1702

Coatings are designed for

optimised tapping performance

in specifi c materials.

P Steel M Stainless Steel K Cast Iron N Non-Ferrous S High-Temp Alloys H Hardened Materials

wear toughness resistance

Coating Grade Description 05 10 15 20 25 30 35 40 45

Coated HSS-E-PM, PVD heat- and wear-resistant high-vanadium cobalt powder metal HSS substrate with high-hardness TiCN coating. Use when tapping heat-treated steel 44–55 HRC and cobalt- or nickel-based heat-resistant alloys. S H

Coated HSS-E-PM, PVD powder metal HSS-E substrate with two-layer coating. TiN base layer and DLC top layer that resists galling of non-ferrous materials to the tap. Use for tapping titanium. Not recommended for steel. S

Coated HSS-E-PM, PVD powder metal HSS-E substrate with DLC coating. Use for form tapping aluminium. Not recommended for steel. N

High-vanadium HSS-E substrate with a coating consists of low friction CrC/C over wear-resistant TiN base layer. Use for tapping stainless steel and non-ferrous materials. N

P M Coated HSS-E substrate with TiCN PVD layer. Use in multiple applications, including K steel, stainless steel, ductile cast iron, and cast aluminium. WP42EG is more abrasionresistant than WU41EG. N

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