Cold machining method of Inconel 706

A technology of coolant and margin, which is applied in the field of cold processing, can solve problems such as surface quality defects and safety accidents, and achieve the effect of improving surface quality, improving quality, and reducing unqualified waste products

Active Publication Date: 2013-06-05
HARBIN TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that there are defects in the surface quality processed by the existing processing technology, and safety accidents are prone to occur, and the inconel706 cold processing method is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific embodiment one: the inconel706 cold working method of this embodiment is specifically carried out according to the following steps:

[0014] 1. Measure the inner hole size of the test ring, measure 8 to 10 points symmetrically, and take the average value;

[0015] 2. According to the measurement size of the inner hole of the test ring, match the convex seam on the mold, the radial clearance is 0mm-0.02mm, the depth of the seam is 15mm-16mm, and the radial width is 25mm-26mm. Put the test ring on the tire Inside the mold stop, the lower end surface of the test ring is in close contact with the mold;

[0016] 3. Turn the upper end surface of the test ring with an end turning tool; when the remaining 0.5mm margin is left on the upper end surface of the test ring, change a new blade for turning, and when the remaining 0.2mm margin is left on the upper end surface of the test ring, replace a new blade, and then turn to the test ring. When there is a 0.1mm allowance...

specific Embodiment approach 2

[0019] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 3, the pressure of the coolant for turning the turning tool is ≥ 4.2 bar, the mass concentration of the coolant is 4% to 10%, and the coolant does not contain Cl ions. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the cutting parameters in step 3 are: Vc=183m / min~274m / min, f≤0.5mm / rev, ap=0.07mm~0.5mm . Others are the same as in the first or second embodiment.

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PUM

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Abstract

The invention relates to a cold machining method, in particular to a cold machining method of Inconel 706 and aims to solve the problem that the surface quality of workpieces machined by the prior part are defective and safety accidents occur easily. The cold machining method includes: firstly, measuring; secondly, laying a test ring into a mould spigot; thirdly, turning the upper end of the test ring by an end-turning tool; and fourthly, turning outer periphery of the test ring by an external turning tool. Surface quality of workpieces machined by the cold machining method is higher, machining rejection rate is lower, quality of fine machined surfaces of Inconel 706 parts is higher, and unsatisfactory waste products are decreased. The cold machining method is used for cold machining of Inconel 706.

Description

technical field [0001] The present invention relates to cold working methods. Background technique [0002] It is generally difficult to process nickel-based superalloys. The existing processing technology only considers how to easily remove the machining allowance, but seldom considers the surface quality after processing. Moreover, there are no specific and clear requirements for processing parameters and equipment conditions. Inconel high-temperature alloy parts generally operate in a high-temperature and high-pressure environment. If there are defects on the surface, these defects will gradually expand during the operation of the unit, resulting in fragmentation of parts and safety accidents. Contents of the invention [0003] The present invention aims to solve the problem that there are defects in the surface quality processed by the existing processing technology, and safety accidents are prone to occur, and provides a cold processing method for inconel706. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00
Inventor 王俊姚青文孙桂玲于克林立晶刘建华关忠丁爱民
Owner HARBIN TURBINE
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