Tungsten Carbide Milling Cutter’s Climb Milling and Up Milling Comparison
- Details
- Category: Tungsten Information
- Published on Wednesday, 29 October 2014 18:21
Tungsten carbide milling cutter climb milling has smaller power consumption than up milling. Under the same cutting conditions, climb milling is 5%～15% lower than up milling in power consumption, and also, it can conduct chip removal more easily. In order to improve surface finish of work pieces and ensure size precision, climb milling should be adopted preferentially. However, when there is obvious hardened layer, deposition and uneven work piece surface, up milling should be taken. During climb milling, the cutting thickness is getting thinner and the cutter teeth cut from the unprocessed surface, which is good for the use of tungsten carbide milling cutters. While during up milling, when the cutter teeth touch the work piece, they can not cut into the metal layer immediately, instead, the cutter has to glide a short distance on work piece surface, during which, due to the friction, a great amount of heat will be generated and then form a hardened layer on the surface. ALL these will have bad effects on the cutting, such as reducing the cutter’s service life and lowering the work piece surface finish. In addition, cutter teeth move upwards in up milling and begin with the surface hardened layer, so the teeth will suffer from great impact load, which will make the cutter go blunt quickly.
Because the cutting thickness difference between tungsten carbide milling cutter’s climb milling and up milling, cutters with different milling ways have different wear degrees. Cutters are two to three times more durable in climb milling than in up milling. However, climb milling is not suitable for the milling of work pieces with hard cover.
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