Method for producing multifunctional outer circle chamfering knife with powder as raw material

A multi-functional, rounded chamfering technology, which is applied in the direction of cutting blades, accessories of toolholders, and tools used in lathes, etc., can solve the problems of no back angle, large resistance, and increased rotational friction of the tool, so as to improve cutting efficiency. , Improve waste discharge efficiency and facilitate demoulding

Active Publication Date: 2022-02-18
YANGZHOUSSHINE POWDER METALLURGY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The cutting tool with the above structure has the following defects: First, the production cycle of the cutting tool is long, and it is processed in a single piece, which is not suitable for mass production.
The cutting edge and the inner wall of the cutter are on a circular arc surface, and the cutting efficiency of the cutting edge is low; second, the inner wall of the cutter will rub against the workpiece to be chamfered, the smoothness will decrease, and the rotational friction will increase; third, the cutter is large in size, heavy weight

Method used

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  • Method for producing multifunctional outer circle chamfering knife with powder as raw material
  • Method for producing multifunctional outer circle chamfering knife with powder as raw material
  • Method for producing multifunctional outer circle chamfering knife with powder as raw material

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Effect test

Embodiment Construction

[0058] Such as Figure 1-8 As shown, a multifunctional cylindrical forming tool produced by injection molding technology includes a clamping portion 41 and a cutter body 42.

[0059] A cutter body 42 is arranged at the end of the clamping portion 41, and the cutter body 42 is a hollow bottomless conical structure. A fan-shaped cutter body 422 and a discharge hole 421 are arranged on the cutter body 42. The fan-shaped cutter body 422 and the discharge hole 421 are arranged at intervals, and the fan-shaped cutter body One side of the inner wall of 422 is provided with a knife edge 423 , and the other side of the inner wall of the fan-shaped knife body 422 is offset outward relative to the knife edge 423 to form a knife edge escape portion 424 . The cutter body is designed as a hollow conical structure, which can process the object to be chamfered into rounded corners. A certain space is staggered between the cutting edge and the cutting edge avoiding part, which is convenient f...

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Abstract

The invention belongs to the technical field of cutting tool preparation, and specifically discloses a method for producing a multifunctional outer circle chamfering knife by using powder as a raw material, comprising the following steps: (1) using a mold for injection molding; (2) degreasing; (3) sintering: using Vacuum sintering method; (4) heat treatment; (5) sandblasting; (6) electroplating. The molding method of the invention is a one-shot net molding method, and the material utilization rate can reach 98%, without subsequent machining. The cutting tool of the invention is convenient for cutting the object to be chamfered, and discharges the cutting waste in time, has high cutting and waste discharge efficiency, can protect the inner wall of the cutting tool, and has a long service life.

Description

technical field [0001] The invention relates to cutting tools, in particular to a method for producing a multifunctional outer circle chamfering knife using powder as a raw material, and belongs to the technical field of cutting tools. Background technique [0002] Existing knives are generally produced by traditional machining methods: bar stock (raw material) → blanking → rough turning → finishing turning → milling machining center engraving and milling → heat treatment → sandblasting → electroplating. The utilization rate of raw materials in the existing technology is extremely low, the raw material is 250g, the finished product is 30g, and the actual utilization rate is only about 12%. The manufacturing process is all processed by machining, the production capacity is low, the tool loss is serious, and the process cost is relatively high. [0003] The authorized announcement number is CN 205519941 U, and the announcement date is August 31, 2016. The Chinese invention pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/22B22F3/10B22F3/24B22F5/00B23B27/00
CPCB22F3/225B22F3/10B22F3/24B22F5/00B23B27/00B22F2003/248B22F2005/001B23B2200/328
Inventor 翟高华黄雁宇游进明陆安群王安剑李学勇
Owner YANGZHOUSSHINE POWDER METALLURGY
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