Milling Stainless Steel With Hss

In solid carbide drills microcracks can form on the cutting edges which will eventually cause the drill to fail.

Milling stainless steel with hss.

Stainless steel 400 series and ph. High efficiency milling can be a very effective machining technique in stainless steels if the correct tools are selected. And hb brinell hardness number. Recommended cutting speeds in feet per minute for turning milling drilling and reaming ferrous cast metals.

Are unlikely to be substantial enough for the successful machining of stainless steels. Calculate the rpm setting to perform this cutting operation. Machines should not be prone to excessive vibration in the machine bed drives and gear boxes or at the cutting tool or its mountings. Hss twist drill recommended speeds and point angles.

Q and t quenched and tempered. In high speed steel hss drills this heat will cause the tool to lose its hardness. Free machining plain carbon steels resulfurized 1212 1213 1215. Small training or hobbies lathes and milling machines intended for machining mild steel brasses etc.

Cutting speed 50 fpm diameter of cutter 1 00. When you machine stainless steel you are generating high temperatures explained scott turner marketing manager holemaking seco tools. Chipbreaker roughers would make an excellent choice in either 5 or 7 flute styles while standard 5 7 flute variable pitch end mills can also perform well in hem toolpaths. Gray cast iron 180 hb.

Stainless steel 200 300 series. Speeds for turning based on a feed rate of 0 012 inch per revolution and a depth of cut of 0 125 inch. Recommends sfm feed rates and point angles for hss twist drills for various workpiece materials. Traditionally high speed steel hss tools have been used for drilling and reaming but carbide tipped tools are also used for specialised jobs or long production runs.

A 3 4 inch hss drill is used on a piece of leaded 11l17 steel with a brinnel hardness of 100.