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Processing method for ultra-high strength steel axis parts

An ultra-high-strength, high-strength component technology, which is applied in metal processing equipment, machine tools designed for grinding the rotating surface of workpieces, manufacturing tools, etc., can solve problems such as low processing efficiency, many processing procedures, and large grinding force, and achieve Improve processing accuracy and processing efficiency, reduce burns and hardening, reduce generation and temperature rise

Inactive Publication Date: 2013-05-01
唐昆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, for the processing of ultra-high-strength steel shaft parts, the combination of rough cutting and finishing grinding is mostly used. This process has the following problems: First, during the cutting process, the cutting force is large and the cutting temperature is high. , the tool wear is large and the durability is low; the second is that during the grinding process, the grinding force is large and the grinding temperature is high, which is prone to burns and hardening of the machined surface; It takes a long time to perform clamping and tool setting, the processing efficiency is low, and it is easy to cause errors in clamping and tool setting

Method used

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  • Processing method for ultra-high strength steel axis parts
  • Processing method for ultra-high strength steel axis parts
  • Processing method for ultra-high strength steel axis parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Device setting and part clamping: the ultra-high-strength steel shaft parts 3 to be processed with a length of 100mm, a radius of 50mm, and a grade of 30Cr3SiNiMoVA are clamped on a MKS1332 / 1000 high-speed external machine through the top 10 and top 11. On the circular grinder, the distance between the axis of the part and the table 8 is 300mm. The nitrogen nozzle 4 and the CBN grinding wheel 9 are arranged oppositely, and are respectively located on both sides of the part 3 to be processed. The width of the nitrogen nozzle 4 spout is 10 mm, and the height is 1 mm. The outer diameter of the CBN grinding wheel 9 is 500mm and the width is 10mm. A nitrogen nozzle 4 is arranged on the left side of the part 3 to be processed, and the nitrogen nozzle 4 is supplied with nitrogen through an air supply hose 5 . Nitrogen is sprayed onto the part 3 to be processed through a nitrogen nozzle 4 , and the nitrogen nozzle 4 is supported by a nitrogen nozzle bracket 6 . The nitrog...

Embodiment 2

[0026] 1. Device setting and parts clamping: the ultra-high strength steel shaft parts 3 to be processed with a length of 200mm, a radius of 60mm, and a grade of 40CrMnSiMoVA are clamped on a MKS1332 / 1000 high-speed external machine through the top 10 and top 11. On the circular grinder, the distance between the axis of the part and the table 8 is 300mm. The nitrogen nozzle 4 and the CBN grinding wheel 9 are arranged oppositely, and are respectively located on both sides of the part 3 to be processed. The width of the nitrogen nozzle 4 spout is 15mm, and the height is 1mm. The outer diameter of the CBN grinding wheel 9 is 450mm, and the width is 15mm. A nitrogen nozzle 4 is arranged on the left side of the part 3 to be processed, and the nitrogen nozzle 4 is supplied with nitrogen through an air supply hose 5 . Nitrogen is sprayed onto the part 3 to be processed through a nitrogen nozzle 4 , and the nitrogen nozzle 4 is supported by a nitrogen nozzle bracket 6 . The nitroge...

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Abstract

The invention relates to a processing method for ultra-high strength steel axis parts. According to the method, the ultra-high strength steel axis parts are clamped on a high speed cylindrical grinder; in the four process flows of device setting and parts clamping, coarse grinding, semi-grinding and accurate grinding, the parts are cooled intensely after and before the process flows of coarse grinding, semi-grinding and accurate grinding; high-pressure gas and liquid mixed fluid is sprayed into a grinding area from top to bottom in the three process flows of coarse grinding, semi-grinding and accurate grinding. The processing method for the ultra-high strength steel axis parts has the advantages of small grinding force, high grinding efficiency, improving the fragility of a material, improving the processability of the material, reducing the generation of grinding heat and temperature rising, reducing burning and hardening of a processed surface, reducing clamping errors, improving processing precision and processing efficiency and no need of secondary clamping.

Description

technical field [0001] The invention relates to a processing method for ultra-high-strength steel shaft parts, in particular to an efficient and precise processing method for ultra-high-strength steel shaft parts. Background technique [0002] Ultra-high-strength steel usually refers to high-strength structural steel with a yield strength higher than 1400MPa and a certain degree of toughness and plasticity. After quenching, the hardness of this kind of steel can reach more than 50HRC, which is a typical important steel characterized by high strength and high hardness. At present, ultra-high-strength steel has been widely used in rocket engine shells, aircraft landing gear and other important parts of aerospace and military industries, and with the continuous improvement of ultra-high-strength steel process performance, the excellent mechanical properties make its application scope is increasing Constantly expanding to machinery manufacturing, vehicles and other civilian fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/36B24B55/02B24B55/06B24B41/06
Inventor 刘桂明陈备战曾仲华
Owner 唐昆
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