Cemented carbide twist drills deep hole machining (hole machining of outboard mechanical parts)

Workpiece material:SUS27(HS28)	Parts diagram
Processing Machinery: special machine tools
Tools:φ16x450xMT2
Conditions: Rotation speed 600r/min Cutting speed 30m/min Feed rate 0.15mm/r Processing depth 240mm

Results: in the past is the first long cemented carbide with the HSS twist drill out of the hole, and then hollow drilling process twice, and finally finishing reamers. Now use a front-end for the whole of cemented carbide twist drills, only processing once last reamer finishing.

Sec rake angle

Summary: As the depth of the hole is approximately 240mm (cemented carbide twist drills diameter is 15 to 16 times), is rather deep holes, so should be used to guide sleeve, drill down to the depth of 50 mm, 15mm deep stepped processing At this time the processing out of the large hole size tolerances. Can be HSS Arbor front brazing carbide blade grinding on the cutting edge to make the front corner of Sec. cemented carbide twist drills with this whole processing, the chip radius smaller than before, good discharge performance. Although the amount of feed and the same as before, but only one processing can make the hole tolerance of less than 0.15mm.

Chinatungsten Online can provide various sizes and grades of cemented carbide cutting tools, non-standard products are also customized according to customer requirements. Welcome to consult and purchase sales@chinatungsten.com, sales@xiamentungsten.com .