Брошюра Tungaloy новая продукция - страница 164

APPLICATION RANGE AND RECOMMENDED TOOL LENGTHS FOR DMF HEAD

Please use the shortest possible tool

Recommended L/D ≤ 8

Plane surface Complex exit Cross hole Rough / cast surface

Application

Recommended L/D ≤ 3 ≤ 1.5

Slant surface Round surface Hole expansion Plunging

Application

- Maximum slant angle 12 degrees - Feed rate should be decreased when drilling uneven surfaces - Overlap should be under 30% of head dia. at hole expansion - Plunging width should be 70% of head dia.

HE AD COMBINATIONS OF PRE-HOLE TO MAIN HOLE

Pre-hole

DMP DMC DMF

DMF