Machining process of cylinder reinforcing rib based on laser grooving and hot rolling

Abstract

The invention discloses a machining process of a cylinder reinforcing rib based on laser grooving and hot rolling, and belongs to the field of cylinder machining. According to the machining process of cylinder reinforcing rib based on laser grooving and hot rolling, inner rib machining of a cylinder is achieved in a laser grooving and rolling hot machining mode, and material cutting and plastic machining are comprehensively utilized. The process is high in machining efficiency, free of welding seams, good in quality, capable of saving materials and energy and low in production cost. An induction heating mode is adopted, a heating area is an inner surface of the position, needing to be machined, of the cylindrical blank, so that induction heating has the advantages of being high in heating efficiency and obvious in skin effect; only the inner side material is heated, the temperature of the inner side material is increased, the plasticity of the inner side material is enhanced, and the outer layer material is still kept at the low temperature and is high in bearing capacity and small in thermal deformation. By means of the method, the deformation resistance of the material is reduced, the plastic deformation capacity of the material is improved, the cracking problem of the cutting groove is avoided, and a high-precision workpiece can be obtained easily.

Description

Technical field [0001] The present invention belongs to the field of the processing cylinder, in particular a cylindrical member based laser grooving and hot rolled stiffener process. Background technique [0002] Thin-walled cylindrical body with a large bead complex is rocket fuel tank, the main components of the engine housing. Such parts having a large diameter, thin wall, high machining accuracy and quality characteristics, the ribs longitudinally, or circumferentially distributed across, for producing extremely difficult, typical aerospace industry strangle hold technique. [0003] At present, domestic and effective methods of processing only two such parts, "Chemical Milling roll bending + + welding" or "high-speed CNC milling + + equally shaped bend welding" process route, two processes are present process complex, low productivity, difficult to guarantee quality, high cost, serious waste of materials and energy shortage. The traditional mandrel spinning process technolog...

AI Technical Summary

Problems solved by technology

[0003] At present, there are only two effective methods for processing such parts at home and abroad, the process route of "roll bending forming + chemical milling + welding" or "high-speed CNC milling + equidistant press bending + welding". Complicated, low production efficiency, difficult to guarantee quality, high cost, serious waste of materials and energy, etc.

However, the traditional core mold spinning process and other technologies need to use large molds with inner shapes when producing such large parts, and the cost of the mold is too high and the adaptability is poor.

Single cold plastic processing or thermoplastic processing will lead to problems such as excessive equipment tonnage and insufficient product precision

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