Laser forming method for lightweight structural plate

A laser forming and lightweight technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of low forming efficiency, long forming cycle, long aging forming cycle, etc., and achieve high forming efficiency and high forming speed. , the effect of short forming cycle

Inactive Publication Date: 2016-10-12
HARBIN INST OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Using the traditional mechanical forming method, the ribs of the lightweight structural plate are easy to break and fail, rebound after forming, and the forming efficiency is low; while the aging forming cycle is long and the efficiency is low; therefore, the traditional forming method of lightweight structural plate cannot meet the requirements. Today's fast-growing industrial needs
[0004] To sum up, how to solve the problems of springback, low forming efficiency and long forming cycle of lightweight structural panels after forming has become an urgent problem to be solved by those skilled in the art

Method used

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  • Laser forming method for lightweight structural plate
  • Laser forming method for lightweight structural plate
  • Laser forming method for lightweight structural plate

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specific Embodiment approach

[0034] A specific embodiment of the present invention is as follows:

[0035] refer to image 3 , Laser forming of 5A06 aluminum alloy sheet with skin geometric size 400×400.

[0036] After the surface of the skin is cleaned, the whole is coated with a thin layer of water-based graphite or ethanol graphite, and the plate is clamped with a pressing block to hold the 5mm thick parts of the middle part of the plate and fixed on the workbench. Select the scanning position, and the selected scanning position is: the position 104mm away from the free end of the grid part 4 of the plate.

[0037] The forming parameters of the selected laser are: laser power 1100W, scanning speed 20mm / s, spot diameter 12mm, scan the plate from one end of the scanning line to the other end, and scan twice in total. After the first scan, the plate was cooled to room temperature before the second scan. The forming result of the scanned plate is extracted using a 3D scanner.

[0038] Through experimen...

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Abstract

The invention discloses a laser forming method for a lightweight structural plate, which includes scanning the lightweight structural plate with a variable-energy laser to realize forming of the lightweight structural plate. The variable energy laser forming method of the present invention makes the light-weight structural parts less springback after forming, the forming period is short, and the forming speed is fast, which greatly improves the bending forming efficiency of the lightweight structural plate and reduces the forming cost.

Description

technical field [0001] The invention relates to the technical field of preparation of lightweight structural plates, in particular to a laser forming method for lightweight structural plates. Background technique [0002] Laser forming belongs to thermal accumulation forming, which can form high hardness and brittle materials. Laser forming does not require abrasive tools and external force. At present, scholars at home and abroad mainly conduct research on laser forming technology for flat plates, while lightweight structural plates mainly rely on traditional mechanical forming and aging forming. [0003] Using the traditional mechanical forming method, the ribs of the lightweight structural plate are easy to break and fail, rebound after forming, and the forming efficiency is low; while the aging forming cycle is long and the efficiency is low; therefore, the traditional forming method of lightweight structural plate cannot meet the requirements. Now the rapid development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/60B23K26/70B23K26/00
CPCB23K26/60B23K26/00B23K26/702
Inventor 杨立军王扬张宏志付守冲王懋露迟关心
Owner HARBIN INST OF TECH
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