Spot welding method for metal honeycomb core

Abstract

The invention discloses a spot welding method for a metal honeycomb core and relates to a determining method for the spot welding parameter of the metal honeycomb core and a spot welding clamp for the honeycomb core. The spot welding method includes the steps that firstly, a similar formula converting calculation method is used for preliminarily obtaining preliminarily-selected parameters of corresponding welding materials; and then a spot welding test is conducted according to the preliminarily-selected parameters, and the optimal spot welding parameter is determined through fine turning and correcting. The spot welding clamp of the honeycomb core is characterized by comprising two supporting plates, two connecting plates, compressing blocks and supporting rods, wherein the number of the compressing blocks is equal to that of the supporting rods. When the spot welding clamp is used, the honeycomb core is put on the spot welding clamp, and spot welding is conducted on the honeycomb core according to the determined spot welding parameter. The spot welding method has the beneficial effects that the spot welding parameter of the honeycomb core is easy and convenient to determine, and the welding clamp is simple in structure and convenient to operate; and high-quality and high-efficiency welding of the honeycomb core is achieved.

Description

technical field [0001] The invention relates to a novel spot welding method, in particular to a spot welding method for a metal honeycomb core. Background technique [0002] The spot welding of honeycomb core involves the determination of spot welding parameters and the clamping of honeycomb core. [0003] Accurate welding parameters can ensure that the formed nugget has no internal and external defects, has a nugget diameter and penetration rate suitable for the thickness, and meets the strength requirements. At present, the commonly used methods for determining welding parameters are simple chart method and look-up table method. The simple chart method divides the welding parameters into three types: hard specification, medium specification and soft specification according to the spot welding heating speed and heating range, and summarizes the relevant parameters of these three specifications into a simple icon as a reference for primary selection, which is easy to operat...

AI Technical Summary

Problems solved by technology

The simple chart method divides the welding parameters into three types: hard specification, medium specification and soft specification according to the spot welding heating speed and heating range, and summarizes the relevant parameters of these three specifications into a simple icon as a reference for primary selection, which is easy to operate Simple, but its sensitivity to materials is small, and the error may be large

The look-up table method is to find out the welding parameters with the same material and thickness from the welding parameter table provided in the welding process manual or technical literature. This method is a technical summary of previous welding experience. It has practice as a basis and is correct. Relatively high, the shortcomings are also obvious, not all welding parameters corresponding to the material and thickness can be found from the chart

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