Carbide preform is a kind of carbide rod blank in a special shape
which is near the final cutting tool shape, customer can customize
the preform. The reason for a preform exist is that the tungsten
carbide is very hard after sintering, to do machining on a sintered
tungsten carbide blank is very difficult, usually by grinding or
slow wire cutting EDM, which are very slow and expensive.
However, before sintering, the tungsten density is low, easy to be
cut, chamfered, grooved, or trimmed to different shapes, then it is
sintered to be a preform with a shape close to final cutter shape,
which saves lots of after-sintering machining time, cost and labor.
T shape preform is a typical preform shape, which has a very big
blade head end and small shank end, one or more steps on the outer
diameter of a carbide rod.
Carbide preforms are customized base on customer’s drawing, sample,
or final cutter shape. Please contact the professional salesperson
to get quotation case by case.
Relate Carbide Rod Products
Ground Carbide Rod
Straight Hole Carbide Rod