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Austenitic stainless steel turning technique

A technology of austenitic stainless steel and stainless steel, which is applied in the direction of turning equipment, cutting blades, manufacturing tools, etc., can solve the problems of difficult machining, poor machinability, high machining accuracy, etc., improve the quality of workpieces, solve the problem of large cutting force, and solve the problems of Difficult cutting effect

Inactive Publication Date: 2015-04-29
QINGDAO TIANHENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the high-pressure conveying of liquids containing acid and alkali, most of them use austenitic stainless steel valve fittings. These parts have complex shapes, require high machining accuracy, and have extremely poor machinability, which brings great difficulties to machining.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] The austenitic stainless steel turning process of the present embodiment comprises the following main technical measures:

[0016] (1) Tool: At present, 1% Nb is added to the YG8 material to become YG8N, and the performance of this material is 1 to 2 times higher than that of YG8; in semi-finishing and finishing machining, coated carbide (such as YB215 ) and cubic boron nitride tools for cutting stainless steel can also significantly improve the cutting performance of the tool; when rough turning austenitic stainless steel, the rake angle generally takes a negative value γ=-15 0 , γ=20 for cemented carbide tools during semi-finishing and finishing turning 0 It is the best; α=7 when roughing the rear corner 0 , α=10 during finishing 0 ;The blade inclination angle is λ=-10 0 ;

[0017] (2) Selection of cutting amount: turning austenitic stainless steel feed rate 0.10mm / r;

[0018] Selection of cutting fluid: its formula is: total loss system oil 40%: molybdenum disul...

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PUM

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Abstract

The invention discloses an austenitic stainless steel turning technique. In metal cutting processing, the stainless steel material belongs to a difficult processed material and the austenitic stainless steel material is especially difficult to process. The cutting technique, processing cost and processing quality of the austenitic stainless steel all become the present machining problems. Through continuous exploring and searching, the optimum tool geometric angle, material, cutting liquid, and the like are confirmed; a test analysis method is adopted for confirming the method of the austenitic stainless steel turning technique; the austenitic stainless steel turning technique has the characteristics of short time, accuracy, reliability and strong pertinence; through analysis and comparison, reasonable technical parameters are acquired; an experimental result proves that the problems of large turning force, high cutting temperature, low tool durability and low production efficiency during the austenitic stainless steel turning process can be better solved; the quality of the workpiece is obviously increased; the problem of difficulty in cutting the austenitic stainless steel is basically solved.

Description

[0001] technical field [0002] The invention belongs to the technical field of casting, and in particular relates to an austenitic stainless steel turning process. [0003] Background technique [0004] Because stainless steel has excellent corrosion resistance, high strength and toughness, it is widely used in liquid and gas transmission pipes. Especially in the high-pressure conveying of liquids containing acid and alkali, most of them use austenitic stainless steel valve fittings. These parts have complex shapes, require high machining accuracy, and have extremely poor machinability, which brings great difficulties to machining. . In this regard, how to improve the processing quality of workpieces made of such materials and reduce processing costs has become a technological problem that needs to be solved urgently. [0005] Contents of the invention [0006] In order to overcome the above-mentioned technical problems existing in the prior art field, the object of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00B23B27/00
CPCB23B1/00B23B27/00B23B2200/28B23B2222/80
Inventor 刘升迁
Owner QINGDAO TIANHENG MACHINERY
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