Каталог Iscar вращающийся инструмент 2017 - страница 600

Regrinding Instructions for SCDT Pre-Thread Solid Drills

For each grinding operation, rotate the drill 180° and repeat the grinding procedure.

45∞ 7∞ spiral relief

1

Primary Clearance

a° D Range 7 0.8-6.0 10 >6.1

2

Secondary Clearance

3

Chisel

a° D Range 100 3.0-4.8 105 4.9-10 95 10.1-20

4

R D Range 0.02 0.8-6.0 0.03 6.1-18.0 Edge Preparation 0.04 18.1>UP Grinding Wheel Recommended Specifications: 3. Grit size: 325/400 mesh (45/38µ) 1. Diameter grinding wheel: GA2 4. Diamond concentration: C-75 (3.3 carat/cm3) 2. Grinding wheel bond: synthetic resin 5. Cutting fluid emulsion 3%