Turning technique for long spoke portion of integral impeller

A technology of integral impeller and process method, applied in the direction of turbines, mechanical equipment, etc., can solve the problems of high processing resistance, poor thermal conductivity, excessive size and technical conditions, etc., and achieve the effect of high processing quality and accurate processing dimensions.

Inactive Publication Date: 2015-05-06
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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AI Technical Summary

Problems solved by technology

The traditional processing method of long-spoke plate parts usually adopts the processing method of rough turning + semi-finish turning + finish turning. The thickness is thinner, the processing accuracy is higher, and the nickel-based superalloy is generally used, and the machinability is poor, so the processing difficulty is relatively high.
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  • Turning technique for long spoke portion of integral impeller

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail: as figure 1 Shown is a schematic diagram of the structure of the new fixture used in one embodiment of the present invention after it is matched with the parts.

[0014] In the past, ordinary structure fixtures were used, and secondary clamping and alignment processing was required for single-sided turning. The new fixture of the present invention includes a frame 1, and an auxiliary support block 3 is added to the spoke umbilicus of the integral impeller part 4, and an auxiliary support block 3 is added to the integral impeller part 4 An anti-hook compression block 2 is added to the outer edge of the long-radius plate. Bolts are arranged on the anti-hook compression block 2, and the anti-hook compression block 2 can be tightened by tightening the bolts to compress the long-radius plate. The outer edge can increase the processing rigidity of ...

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Abstract

The invention provides a turning technique for a long spoke portion of an integral impeller and belongs to the technical field of machine manufacturing. The turning technique comprises the following steps that firstly, a novel clamp is used for clamping a part; secondly, a rhombus cutter is used for conducting turning from inside to outside, and turning is conducted according to the processes of rough turning, primary semi-fine turning, secondary semi-fine turning and fine turning. The novel clamp used in the first step comprises a machine frame. A reversely hooking compressing block and an auxiliary supporting block are arranged on the machine frame, wherein the reversely hooking compressing block can be matched with the outer edge of the long spoke portion of the integral impeller, and the auxiliary supporting block can be matched with the spoke navel portion of the long spoke portion of the integral impeller. By the adoption of the turning technique for the long spoke portion of the integral impeller, the machined long spoke portion of the integral impeller is high in machining quality and accurate in machining size.

Description

Technical field: [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a process method for turning the long-radius plate part of an integral impeller. Background technique: [0002] With the improvement of thrust-to-weight ratio requirements of aero-engines, the application of integral impellers is becoming more and more extensive. The processing quality of rotors not only directly affects the life of the entire engine, but also has a great impact on its safety and reliability. The traditional processing method of long-spoke plate parts usually adopts the processing method of rough turning + semi-finish turning + finish turning. The thickness is thinner, the processing accuracy is higher, and the nickel-based superalloy is generally used, and the machinability is poor, so the processing difficulty is relatively high. In the original processing technology, the processing resistance is large, the thermal conductivity is...

Claims

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Application Information

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IPC IPC(8): B23B1/00
CPCB23B1/00B23B2215/76
Inventor 张积瑜孙玉民佟富强徐俊杨易
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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