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

A laser grooving and processing technology, applied in laser welding equipment, metal processing equipment, forming tools, etc., can solve the problems of material and energy waste, difficult to guarantee quality, excessive equipment tonnage, etc., to achieve high heating efficiency and production. Low cost and the effect of reducing deformation resistance

Active Publication Date: 2022-01-25
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 In the processing cylinder longitudinal ribs an example embodiment, will be described.

[0045] A process step, laser grooved cylinder, see this section figure 1 and figure 2 , figure 1 and figure 2 Example embodiments are isometric and schematic top view of the laser grooved 1;

[0046] 2 is first tubular material is mounted inside the outer cylindrical split mold 1, and the laser cutting head 3 projects into the interior of the tubular blank 2. Laser grooving, the laser cutting head 3 from one end of the tubular blank 2 to the other end of the movement, processing the desired groove 2 of the tubular material. Laser cutting head 3 for each completed processing a trench, the outer cylindrical split mold 1 drives rotation of the tubular material 2 a small angle, so that the laser cutting head 3 at a position n-grooving. Is repeated until the complete processing of all the trenches, at this time becomes the cylindrical blank 2 laser grooved barrel 4. Finally, the la...

Embodiment 2

[0052] When the reinforcing rib when, the overall process is substantially the same steps as in Example 1 barrel processing aspect, the need to change the laser cutter processing path 3, to give vertical and horizontal grooves, and then use aspect, instead of longitudinal ribs nip roller 5 to the roll bars 9 to give vertical and horizontal cylindrical bars 10 processed by this process.

[0053] Figure 7 Example 1 is a longitudinal front view of the rolling rolls used in FIG ribs, wherein Figure 7 (A) is a longitudinal rib roll, Figure 7 (B) a longitudinal cylindrical rib Example 1 embodiment, it can be seen corresponding to both.

[0054] See Figure 8 , Figure 8 A front view of a roll to an aspect of the embodiment of Example 2, Figure 8 (A) for the longitudinal and transverse ribs roll, Figure 8 (B) is an aspect of the embodiment of Example 2 to the cylindrical ribs.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K26/70B21D15/02B21D37/16
CPCB23K26/38B23K26/702B21D15/02B21D37/16Y02P10/25
Inventor 朱成成孟德安董源哲汪学斌黄浩
Owner CHANGAN UNIV
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