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Take twice the average of the maximum tensile force of the tensile specimen as a tensile strength of the joints in the welding specifications, and then calculate the tensile strength. Data record

is shown in Table 5. Which number corresponds to the orthogonal design. The test results of analysis of each experiment number corresponds to the tensile strength of welded joints and their range

analysis as shown in Table 6, the table T1, T2, T3, respectively, factors A, B, C, 2, 3 levels of anti- tensile strength, R is very poor. The analysis from Table 6 results, the level of factor A,

B, and C correspond to, respectively, for 2,2,3, maximum tensile strength, ie, process parameters A2B2C3 (welding current is 82A, the pulse width of 2.0ms pulse frequency of 22Hz), the maximum

tensile strength. The requirement is towards the brightness of green laser pointer .
The set of process parameters for optimum process parameters. The set of process parameters correspond exactly to the parameters of experiment No. 5 in the table, the tensile strength of nine

experiments. And range analysis in the table, we can draw the influence of welding current on tensile strength of weld, followed by pulse width, the impact of the minimum pulse frequency. Test the

tensile strength of the base metal of the same size as 582Mpa that the optimal parameters of welded joints carrying capacity of up to 99% of the parent material, the carrying capacity of welded

joints and base metal. Electron beam welding and laser welding an electron beam welding principle in automobile manufacturing, whether it is the production of engines, transmissions and other

components. When green laser pointer is used for the star gazing.
Or body manufacturing and assembly, welding processes are important means of processing. In addition to the traditional arc welding, resistance welding and other welding techniques are commonly

used in modern automotive production process, the application of electron beam welding and laser welding as the representative of a new generation of welding technology more widely, and by virtue

of the precision and efficiency characteristics such as automobile production enterprises to improve product quality, reduce production costs and increase the competitiveness of products of a

powerful tool. Electron beam welding technology originated in the 1950s, 10 years after the laser was born, laser processing technology research and application is started immediately. Electron

beam and laser processing with a high energy density beam processing technology, the application of the field much the same energy density in the same paragraph of magnitude much higher than other

sources of heat. The performance of green laser pointer matters a lot.