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Multi-layer and multi-pass welding bead design method

A design method, multi-layer and multi-channel technology, applied in welding equipment, arc welding equipment, metal processing equipment, etc., can solve the problems of unstable welding product quality, enhance international market competitiveness, reduce impact, and improve consistency sexual effect

Pending Publication Date: 2021-02-23
JIANGSU XCMG CONSTR MASCH RES INST LTD
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Problems solved by technology

[0003] In the process of welding process design, the traditional joint detail design only includes the groove characteristic parameters, welding method and recommended welding parameters. As for the details of the weld bead filling in the groove, there are no specific requirements, and it is all based on the experience of the operator. Operation" to a certain extent led to the instability of welding product quality

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Embodiment Construction

[0037] The present invention will be further explained in detail below in conjunction with the accompanying drawings and specific embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0038] A parameterized design method of multi-layer multi-pass weld 3, including the following steps (taking V-groove 2 as an example):

[0039] (1) Get workpiece 1 thickness t, weld length L 0 , V-shaped groove 2 shape and size (including groove 2 angle θ, blunt edge e, gap a), such as figure 1 shown;

[0040] (2) According to the thickness t of the workpiece 1, the angle θ of the groove 2, the blunt edge e, the clearance a and other related dimensions of the groove 2, and obtain the maximum allowable reinforcement height that meets the quality requirements of grade B of the weld in ISO 5817 through geometric calculation, The total filling cross-sectional area S;

[0041] (3) Calculate and obtain the cross-sec...

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Abstract

The invention relates to a multi-layer and multi-pass welding bead design method. The method comprises the following steps: acquiring a total filling sectional area S, and acquiring the total fillingsectional area S of a welding wire when a maximum allowable value of excess weld metal is acquired according to the size of a welding groove; obtaining the sectional area S1 occupied by a single welding seam, and obtaining the sectional area S1 occupied by the single welding seam according to the diameter d of the welding wire, the wire feeding speed delta and the welding speed upsilon; obtainingthe total number n of welding beads, and obtaining the total number n of the welding beads according to the total filling sectional area S and the sectional area S1 occupied by the single welding seam; and designing the welding beads according to the total number n of the welding beads. According to the method, welding parameters, groove parameters and welding bead arrangement can be correlated tobe used for welding process design through parameterized calculation, multi-layer and multi-pass welding bead accurate planning and welding bead quantitative prediction are achieved, then fine management of the welding production process is achieved, and the consistency of product quality is improved.

Description

technical field [0001] The invention relates to a multi-layer and multi-pass welding bead design method, which belongs to the technical field of welding. Background technique [0002] As the contradictions between the environment, resources and social development continue to intensify, green manufacturing has gradually become a global consensus; the progress of the times and the innovation of production technology have given birth to the development direction of a new generation of manufacturing—intelligent manufacturing. Green manufacturing has become one of the development trends of the manufacturing industry, and at the same time, intelligent manufacturing is the main direction of the transformation and upgrading of my country's manufacturing industry. The machinery manufacturing industry is not only a large consumer of energy resources, but also an important source of environmental pollution. The development of green manufacturing has become the general trend. Simply put...

Claims

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Application Information

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IPC IPC(8): B23K9/02B23K9/133B23K9/235
CPCB23K9/02B23K9/133B23K9/235
Inventor 黄松马国张立平
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD
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