Общий каталог Widia 2017 - страница 29

• Step 1 • Select the insert geometry P Steel

M Stainless Steel K Cast Iron

Negative Inserts N Non-Ferrous

S High-Temp Alloys

feed rate (mm/rev) H Hardened Materials

-RH -UR Roughing

-ML -MR Medium Machining

feed rate (in/rev)

-FF Finishing

• Step 2 • Select the grade

Negative Insert Geometry Positive Insert Geometry

cutting condition -FF -ML -MR -UR -RH -FP -MU -MP

WP35CT/ WP25CT/

heavily interrupted cut WP15CT WP25CT WP35CT WP35CT WP35CT WM35CT

WP25CT WS25PT

lightly interrupted cut WP15CT WP25CT WP25CT WP35CT WP35CT WP25CT WP25CT WP25CT

varying depth of cut,

WP15CT WP15CT WP15CT WP25CT WP25CT WP15CT WP15CT WP15CT

casting, or forging skin

smooth cut, pre-turned surface WP15CT WP15CT WP15CT WP25CT WP25CT WP15CT WP15CT WP15CT

• Step 3 • Selecting the cutting speed

Low-Carbon (<0.3% C) and Free-Machining Steel speed — m/min Starting Conditions

material

group grade 135 180 225 275 320 360 410 455 495 m/min

WP15CT 395 WP25CT 275 P0/P1 WP35CT 210 WS10PT 280

WIDIA Material Group Selection Guide: To optimise speed recommendations, material subgroups have been added to each of the six workpiece material groups.

material group number of material

material ISO code subgroups