Welding method for relieving deformation of rack
A welding method and frame technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of unevenness, welding stress concentration, and inconsistent deformation of workpieces, and achieve the effect of reasonable process optimization and reduction of overall deformation.
Inactive Publication Date: 2016-06-22
重庆基石机械有限公司
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Problems solved by technology
[0002] The structure of the frame after welding often has the following problems: (1) The rigidity is small or uneven, shrinkage after welding, and the denaturation is inconsistent; (2) The welding seam layout of the workpiece itself is uneven, resulting in uneven shrinkage, and the parts with many weld seams shrink Large, large deformation; (3) Improper operation of the processing personnel, unsymmetrical layering, segmented, intermittent welding, inconsistent welding current, speed, and direction, resulting in inconsistent deformation of the processed parts; (4) Excessive biting of the meat during welding , causing welding stress concentration
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with embodiment:
[0016] A welding method to reduce frame deformation, including the following requirements:
[0017] (1) Make the stiffness and welds of each part of the workpiece evenly arranged, and set the welds symmetrically to reduce cross and dense welds;
[0018] (2) First weld the main weld and then weld the secondary weld, weld the symmetrical part first and then weld the asymmetric weld, first weld the butt weld and then weld the fillet weld;
[0019] (3) For workpieces with a size larger than 100mm or more than 3 welds, adopt segmental, layered, intermittent welding, and control the current, speed, and direction to be consistent;
[0020] (4) When manually welding the weld seam above 2mm, the discontinuous welding method shall be carried out in sections, and the welding shall be reversed from the middle of the workpiece to the two ends. During welding, the personnel shall be symmetrically...
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The invention discloses a welding method for relieving deformation of a rack. The welding method for relieving deformation of the rack is characterized in that the welding method comprises the following requirements that 1, welding seams are symmetrically arranged to relieve the situation that welding seams are crossed and dense; 2, the main welding seams are welded at first, and then the minor welding seams are welded; the welding seams on symmetrical parts are welded at first, and then the asymmetrical welding seams are welded; the butt joint welding seams are welded at first, and then the welding angle welding seams are welded; 3, welding is conducted on a workpiece of which the size is larger than 100 mm or the size of the welding seams is 3 mm or above in a segmented, layered and discontinuous mode; 4, when the welding seams are subjected to manual welding by 2 mm or above, the method that discontinuous welding is conducted in a segmented mode is adopted; and 5, if the shape of a large-size workpiece is asymmetrical, small parts need to be subjected to group welding, and after deformation is corrected, the small parts are assembled and welded. According to the welding method for relieving deformation of the rack, deformation is offset with each other, process optimization is more reasonable, and overall deformation can be relieved.
Description
technical field [0001] The invention belongs to the field of welding technology, in particular to a welding method for reducing frame deformation. Background technique [0002] The structure of the frame after welding often has the following problems: (1) The rigidity is small or uneven, shrinkage after welding, and the denaturation is inconsistent; (2) The welding seam layout of the workpiece itself is uneven, resulting in uneven shrinkage, and the parts with many weld seams shrink Large, large deformation; (3) Improper operation of the processing personnel, unsymmetrical layering, segmented, intermittent welding, inconsistent welding current, speed, and direction, resulting in inconsistent deformation of the processed parts; (4) Excessive biting of the meat during welding , causing welding stress concentration. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies in the above-mentioned technologies. The present invention...
Claims
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IPC IPC(8): B23K31/02
Inventor 不公告发明人
Owner 重庆基石机械有限公司