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Machining method for pressureless sintered carborundum thin wall structural part

A technology of thin-walled structural parts and sintered silicon carbide, which is used in metal processing equipment, manufacturing tools, grinding workpiece supports, etc., can solve problems such as low processing efficiency, and achieve the effect of increasing the structural strength of workpieces and improving product processing efficiency.

Inactive Publication Date: 2017-11-07
北京钢研新冶精特科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for processing pressureless sintered silicon carbide thin-walled structural parts, which solves the problem of low processing efficiency of existing products and improves the processing efficiency of products

Method used

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  • Machining method for pressureless sintered carborundum thin wall structural part
  • Machining method for pressureless sintered carborundum thin wall structural part
  • Machining method for pressureless sintered carborundum thin wall structural part

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Embodiment Construction

[0022] 1. First, process the upper and lower surfaces of the product, and use self-made paraffin to fill the inner hole of the product (such as figure 2 As shown), it is fixed on a surface grinder by a fixture, and the grinder processes two upper and lower planes with a feed rate of 0.02mm.

[0023] 2. Use the machining center to process the four outer sides of the workpiece, fix the workpiece filled with self-made paraffin on the worktable of the machining center through the fixture, and use Φ20-Φ40mm resin combined with diamond grinding head (diamond particle size 80-180 mesh) to The four sides of the workpiece are processed, the spindle speed is 12000rpm, and the feed rate is 0.01-0.02mm.

[0024] 3. Use the machining center to process the inner four sides of the workpiece, heat to remove the self-made paraffin in the inner hole of the workpiece, and place the workpiece in the middle of the metal tooling. The inner hole size of the metal tooling is 30mm larger than the out...

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Abstract

Disclosed is a machining method for a pressureless sintered carborundum thin wall structural part, and belongs to the technical field of ceramic machining. The product appearance size is 140*140*30 mm, and the wall thickness is 2 mm. The machining method comprises the following steps that firstly, the upper surface and the lower surface of a workpiece are machined by using a flat grinder, and then, the four inner and outer side surfaces of the workpiece are machined by using a machining center. The machining method for the pressureless sintered carborundum thin wall structural part has the advantages that the workpiece is fixed by using a machining tooling and homemade paraffin, the structural strength of the workpiece is enhanced, the wokrpiece is machined through the flat grinder and the machining center, and the product machining efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of ceramic processing, and in particular provides a method for processing a pressureless sintered silicon carbide thin-walled structural part. Background technique [0002] The Mohs hardness of silicon carbide ceramics reaches 9.2-9.5, which is second only to diamond and is very difficult to process. When processing thin-walled parts of pressureless sintered silicon carbide ceramics, in order to avoid product breakage during processing, the feed rate is very small, only 0.005mm, and the processing efficiency is particularly low. The invention adopts the method of filling the inner hole of the workpiece and the gap between the workpiece and the tooling with paraffin to increase the strength of the workpiece during processing, and can set a larger feed rate during the processing to effectively improve the processing efficiency. Contents of the invention [0003] The object of the present invention is to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B41/06B24B7/22
CPCB24B1/00B24B7/228B24B41/06
Inventor 贺智勇张启富王晓波千粉玲史晓强
Owner 北京钢研新冶精特科技有限公司
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