Manufacturing and detection method for large slab three-dimensional metal cover part
A detection method and cover technology, which are applied in manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of difficult detection, low detection efficiency, and long detection time of three-dimensional metal covers, so as to shorten the detection time and the detection process. The effect of fast and reduced inspection costs
Inactive Publication Date: 2015-07-08
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology
However, it is difficult to detect the three-dimensional metal covering of large (overall) thick plates. The digital detection method requires the purchase of large-scale measuring equipment and the detection time is long, the detection cost is high, and the detection efficiency is low. It is not suitable for testing while adjusting and repairing.
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[0014] Refer to attached figure 1 , the picture shows the overall mold of the outer cladding of the three-dimensional end wall steel structure of an export railway passenger car. The tested product is a large (integral) thick plate three-dimensional metal cladding with a length of more than 4m, a width of more than 3m, and a drawing depth of more than 600mm , plate thickness 2mm; preparation and testing methods are as follows:
[0015] 1. Analyze the design structure of large (overall) thick plate three-dimensional metal covering parts, and determine according to the existing manufacturing resource capabilities of the manufacturing enterprise, such as the technical indicators of small pressure processing equipment, the level of mold design and manufacturing, combined with the post-assembly and welding manufacturing process plan. Reasonable block scheme;
[0016] 2. Design and manufacture the overall mold with a single-piece dividing line according to the block plan, and provi...
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Abstract
A manufacturing and detection method for a large slab three-dimensional metal cover part. Blocks are individually manufactured and then welded into a whole. Individual block shaping and individual block trimming based on an integral die are carried out on each block. Individual block detection and integral seaming based on the integral die are carried out on each block. The method only needs to put a large slab three-dimensional metal cover part on detection equipment for detection. The detection process is fast and visual, and is easy to operate. The trimming and detection can be simultaneous. The method is especially convenient for detection of individual block of the large slab three-dimensional metal cover part, and can avoid investment on purchase of large measuring equipment. Therefore, detection time is shortened, detection cost is reduced, and detection efficiency is improved.
Description
technical field [0001] The invention relates to a manufacturing and testing method for a three-dimensional metal covering of a large thick plate. Background technique [0002] The outer covering parts of the three-dimensional end wall steel structure of the railway passenger car and the streamlined front end steel structure are large (integral) thick plate three-dimensional metal covering parts with various shapes, large overall size and large drawing depth, and are made of metal materials with a thickness of 2mm to 3mm; After the mold is used, it needs to be repaired to meet the size requirements and aesthetic requirements of the product design. During the adjustment process, it is necessary to check while adjusting. However, it is difficult to detect three-dimensional metal coverings of large (overall) thick plates. The use of digital detection methods requires the purchase of large-scale measuring equipment and the detection time is long, the detection cost is high, and ...
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IPC IPC(8): B21C51/00
CPCB21D22/02B23K31/12B23K31/02
Inventor 黄治轶张军
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD