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Mechanical processing device and method of ceramic-based complex curved surface parts with wave transmissivity

A complex surface, machining technology, applied in the field of machining, can solve the problems of scrap and broken parts, and achieve the effect of simple processing, good product quality and stable quality

Active Publication Date: 2010-10-13
航天科工哈尔滨风华有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the process of processing, if the cutting parameters are not ideal, it is easy to break and cause the entire part to be scrapped.

Method used

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  • Mechanical processing device and method of ceramic-based complex curved surface parts with wave transmissivity
  • Mechanical processing device and method of ceramic-based complex curved surface parts with wave transmissivity

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A mechanical processing device for a ceramic-based complex curved surface part with wave-transmitting performance, its composition includes: a water storage tank 1 used for a ceramic-based complex curved surface part with wave-transparent performance, the water storage tank 1 is equipped with a pad 2, and the pad The workpiece 3 is installed in the middle of the block 2, and the tongs 4 with oblong holes are installed on the described cushion block 2, and the described tongs 4 are fixed on the cushion block 2 with bolts 5 when pressing the workpiece, and the described water storage tank 1 A water outlet 6 is installed below the outer side, and a water inlet 7 is installed above the outer side of the water storage tank 1 .

Embodiment 2

[0029] The mechanical processing device of the wave-transmissive radome described in Embodiment 1, the ceramic-based complex curved surface part with wave-transmissive performance, for example, the size of the wave-transparent radome includes external dimensions and inner cavity dimensions, and the external dimensions include The size of the lower frame and the size of the upper boss, the size of the lower frame includes the length, the size of the radome includes the outer dimension and the inner cavity size, the outer size includes the length of the lower frame 130± 0 0.02 mm, width 120± 0 0.02 mm, the height of the lower frame is 16±0.1mm, and the length of the upper boss is 120± 0 0.02 mm, the width of the upper boss is 110± 0 0.02 mm; the inner cavity size includes, the inner cavity length is 100±0.1mm, and the width is 90±0.1mm. 0 0.15 mm.

[0030] The tolerance level of the size of the wave transparent radome is IT5; the size range of the workpiece processed by ...

Embodiment 3

[0033] Embodiment 1 The mechanical processing method of a ceramic-based complex curved surface part with wave-transmitting performance, the processing method: first formulate the rough machining thickness, then rough the shape and inner cavity, and then finish the inner cavity surface, and then carry out Finishing the outer surface and finally drilling, the coolant used in the above-mentioned processing process should use pure water, the said cooling liquid is not allowed to contain ions, and no metal is allowed in the above-mentioned processing process The powder is in contact with the workpiece, and the water storage tank is filled with pure water during the above-mentioned processing, so that the workpiece is immersed in the water, that is, submerged processing.

[0034] The processing method of the ceramic-based complex curved surface part with wave-transmitting performance:

[0035] (1). Rough machining thickness: Since the raw material of the radome is sintered, the mach...

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Abstract

The invention relates to a mechanical processing device and a method of ceramic-based complex curved surface parts with wave transmissivity. Most of parts of an aircraft are products with complex curved surfaces, the design and production cycle is long, and the processing workload accounts for more than 65% of that of the whole system; and a wave-transmitting radome has the characteristics of small dimension, compact structure and the like as a key part of a fairing of the aircraft, thereby affecting the flight performance of the aircraft. The device comprises a water storage tank (1), wherein a padding block (2) is arranged in the water storage tank, a workpiece (3) is mounted in the middle of the padding block, a fire poker (4) with a long circular hole is arranged on the padding block (2), the fire poker is fixed on the padding block by using a bolt (5) when pressing the processed workpiece, a water outlet (6) is formed below one side outside the water storage tank, and a water inlet (7) is formed above one side outside the water storage tank. The device is used for SiO2 fiber- toughened SiO2 ceramic-based composite materials, in particular to mechanical processing of the ceramic-based complex curved surface parts with the wave transmissivity.

Description

Technical field: [0001] The invention relates to a technical field of mechanical processing; in particular to a SiO 2 A fiber-toughened ceramic matrix composite material is used as a mechanical processing device and a processing method for complex curved surface parts with wave-transmitting performance. Background technique: [0002] In the field of aerospace, in order to improve the overall performance index of the aircraft and meet the requirements of high-speed, rapid and rapid response, some key components are mostly made of integral structures of high-temperature and oxidation-resistant materials. At the same time, most aircraft parts are products with complex curved surfaces, the design and production cycle is long, and the processing workload accounts for more than 65% of the entire system; Compact structure, etc. affect the flight performance of the aircraft. [0003] SiO 2 Fiber-toughened SiO 2 Ceramic matrix composites are used as radome materials for their exc...

Claims

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Application Information

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IPC IPC(8): B28D1/32
Inventor 赵鸿肖波刘运风李选琦荆君涛尹博席承菊
Owner 航天科工哈尔滨风华有限公司
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