High Speed Steel Cutting Tools Operate At Cutting Speeds

Cutting speed 50 fpm.

High speed steel cutting tools operate at cutting speeds.

As already mentioned hss can in no way compete with carbide tools when it comes to cutting speeds. Softer metals like aluminum and mild steel have higher cutting speeds than do nasty metals like titanium or inconel. Under equally suitable applications a carbide tool can cut 4 to 12 times faster than hss depending on work material and type of operation and naturally the productivity is proportionally high. Cutting speeds for various materials using a plain high speed steel cutter material type meters per min mpm surface feet per min sfm steel tough 15 18 50 60 mild steel 30 38 100 125 cast iron medium 18 24 60 80 alloy steels 20 37 65 120 carbon steels 21 40 70 130 free cutting steels 35 69 115 225.

It is often used in power saw blades and drill bits it is superior to the older high carbon steel tools used extensively through the 1940s in that it can withstand higher temperatures without losing its temper hardness this property allows hss to cut faster than high carbon steel hence the name. For carbide tools double the speeds. So too can carbide and ceramic cutting tools achieve higher speeds regardless of the workpiece material than do ones made of high speed. Cutting speeds with hss.

A 1 00 inch high speed steel hss drill is being used on a piece of 1045 steel with a brinnel hardness of 300. All cutting tools have a recommended cutting speed for any given material. For reamers use 1 2 to 2 3 speed given in this table.