Manufacture[9]

1.Normal Roughing (Turning/Facing)

Use carbide C-2/C-3 grade tool

Speed: 90 surface feet/minute

Feed: 0.010 in./revolution

Depth of Cut: 0.150 in

Negative rake square insert, 45° SCEA1 1/32 in. nose radius.

Tool holder: 5° negative back and side rakes.

Lubricant: Dry2, Oil3 or water-base4,5

2.Finishing (Turning/Facing)

Use carbide C-2/C-3 grade tool

Speed: 95-110 surface feet/minute

Feed: 0.005-0.007 in./revolution

Depth of Cut: 0.040 in.

Positive rake square insert, if possible, 45° SCEA, 1/32 in. nose radius.

Tool holder: 5° positive back and side rakes.

Lubricant: Dry or water-base

3.Drilling

Use high speed steel M-33/M-40 series6/ or T-15 grades*

Speed: 10-15 surface feet/minute (200 RPM maximum for 1/4 in. diameter or smaller)

Lubricant: Oil or water-base. Use coolant feed drills if possible

Short, heavy-web drills with 135° crank shaft point. Thinning of web at point may reduce thrust.

Feed (per revolution):

0.001 in. rev. 1/8 in. dia. 0.002 in. rev. 1/4 in. dia. 0.003 in. rev. 1/2 in.

dia. 0.005 in. rev. 3/4 in. dia. 0.007 in. rev. 1 in. dia.

Nickel-chromium alloys