Shape righting method based on friction stir welding
A friction stir and orthopedic technology, applied in welding equipment, non-electric welding equipment, forming tools, etc., can solve the problems of cold work hardening, high labor intensity, energy waste, etc., and achieve the effect of dense organization, good effect and low cost
Inactive Publication Date: 2020-04-14
昆山万洲特种焊接有限公司
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Problems solved by technology
[0004] Although manual correction is simple, flexible and does not require complicated mechanical equipment, it has great disadvantages: high labor intensity and low efficiency; direct concentrated impact on the product will cause serious local deformation; severe cold work hardening, mechanical Performance is adversely affected, can only be used for unimportant products, and can only correct materials with small thicknesses
And the operation is simple; the disadvantage is that it can only correct materials with high resistivity. If you correct materials with low resistivity like aluminum, it will cause a great waste of energy.
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[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0023] Wherein, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that certain known structures and their descriptions in the drawings may be omitted.
[0024] In the drawings of the embodiments of the present invention, the same or similar symbols correspond to the same or similar components; , "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional ...
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The invention belongs to the field of workpiece shape correction and relates to a shape righting method based on friction stir welding. Different from traditional shape righting methods, the shape righting method of the invention does not belong to any one of four correction methods of manual correction, mechanical correction, flame correction and high-frequency hot spot correction. According to the principle of the shape righting method of the invention, a deformed workpiece is treated by utilizing upsetting force (pressurization) and heat (heating) during friction stir welding, so that a shape correction effect is achieved. According to the method of the invention, the deformed convex surface of the workpiece is fixed in an upward-facing manner; shape correction is carried out by utilizing the welding upsetting force and friction heat; and finally, post-weld cooling is carried out, so that a weld joint is shrunk, and the shape correction effect is enhanced. Compared with the traditional shape righting methods, the shape righting method of the invention is lower in cost and better in effect. The structure of the product can be more compact, and meanwhile a brand-new shape rightingthought is provided for the shape righting industry.
Description
technical field [0001] The invention relates to the field of workpiece orthopedics, in particular to an orthopedic method based on friction stir welding. Background technique [0002] In the field of welding, additional friction stir welding can be used as an internal control method to control the deformation of products; in the orthopedic industry, the introduction of friction stir welding technology can be used as a breakthrough in the industry. [0003] There are many ways to correct product deformation, which can be divided into four types: manual correction, mechanical correction, flame correction and high-frequency hot spot correction according to the nature of the external force. [0004] Although manual correction is simple, flexible and does not require complicated mechanical equipment, it has great disadvantages: high labor intensity and low efficiency; direct concentrated impact on the product will cause serious local deformation; severe cold work hardening, mecha...
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IPC IPC(8): B21D3/00B21D37/16B23K20/12
CPCB21D3/00B21D37/16B23K20/12
Inventor 秦汉吕洋刘铁铮李小林高祎晗
Owner 昆山万洲特种焊接有限公司