Measurement Method of Beam Spatial Shape of High Energy Beam Welding Machine

Abstract

The invention provides a method for measuring the beam space shape of a high-energy beam welder, which includes the following steps: a focus correction step: correcting the focus of the high-energy beam welder; a trial welding adjustment step: using a high-energy beam welder to perform trial welding to obtain a cross Weld seam, adjust the position of the cross line in the monitoring screen according to the cross weld seam; simulate welding steps: use a high-energy beam welding machine to weld the wafer, record the shape and position data of multiple wafers when burns occur respectively; data processing Step: Obtain the beam space shape diagram of the high-energy beam welding machine according to the shape and position data. The present invention comprehensively applies technologies such as shifting and lifting pulse type correction focus, cross continuous type correction fork line, and approaching tangential circle type observation beam diameter, etc., without resorting to expensive special instruments, various types of The beam shape of the high-energy beam welding machine provides a quantitative basis for the structural design of the model product.

Description

technical field [0001] The invention relates to the field of high-energy beam welding, in particular to a method for measuring the beam space shape of a high-energy beam welding machine. Background technique [0002] With the rapid development of high-thrust technology, there are more and more high-energy beam welding (laser welding, electron beam welding) joints in the current space propulsion system. The weld geometry of these joints is generally relatively simple, but there are often some higher bosses near the weld, such as figure 1 As shown, since the laser beam and the electron beam are in an inverted conical converging state in space, for some welding structures where the boss is too close to the weld seam, there is a high probability that the edge of the boss will be burned. In the absence of relevant data reserves in the process, the existing technology cannot quantitatively describe the energy distribution of laser beams and electron beams above the weld, resultin...

AI Technical Summary

Problems solved by technology

In the absence of relevant data reserves in the process, the existing technology cannot quantitatively describe the energy distribution of laser beams and electron beams above the weld, resulting in the inability to make technical requirements for product designers in advance, so a special project is urgently needed Process technology measurement method, in order to draw the beam shape of several high-energy beam welding machines in the institute, so as to provide accurate theoretical support for the optimization of product structure

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