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激光焊接的概述和激光钎焊

发布时间:2018-10-17 11:00:37 浏览次数: 69
激光焊接的概述和激光钎焊

激光焊接是一种无触摸加工办法,对焊接零件没有外力作用。激光能量高度集中,对金属快速加热后快速冷却,对许多零件来讲,热影响能够忽略不计,能够为不产生热变形或者说热变形极小。能够焊接高熔点、难熔、难焊的金属,如钛合金、铝合金等。激光焊接过程对环境没有污染,在空气中能够直接焊接,与需在真空室中焊接的电子束焊接办法比较,激光焊接技能简洁。  激光焊接在电子工业、国防工业、外表工业、电池工业、医疗仪器以及许多职业中均得到了广泛的使用。



  激光软钎焊首要用于印刷电路板的焊接,特别实用于片状元件拼装技能。   选用激光软钎焊与其它办法比较有以下长处:    用非触摸加热,熔化带宽,不需要任何辅助东西,可在双面印刷电路板上双面元件配备后加工。    重复操作稳定性好。 焊剂对焊接东西污染小,且激光照耀时刻和输出功率易于控制,激光钎焊成品率高。 激光束易于完成分光,可用半透镜、反射镜、棱镜、扫描镜等光学元件进行时刻与空间切割,能完成多点同时对称焊。   激光钎焊多用波长 1.06um 的激光作为热源,可用光纤传输, 能够在惯例办法不易焊接的部位进行加工,灵活性好。


激光焊接的概述和激光钎焊


Laser welding is a touch free processing method, which has no external force on welded parts. High concentration of laser energy, rapid heating and cooling of metal, for many parts, the thermal effect can be neglected, can not produce thermal deion or thermal deion is minimal. It can weld high melting point, refractory and refractory metals, such as titanium alloy, aluminum alloy and so on. The laser welding process has no pollution to the environment and can be directly welded in the air. Compared with the electron beam welding method which needs to be welded in the vacuum chamber, the laser welding skill is simple. Laser welding is widely used in electronic industry, national defense industry, appearance industry, battery industry, medical equipment and many occupations.

激光焊接的概述和激光钎焊

Laser soldering is mainly used for welding of printed circuit boards, especially for chip assembling. Laser brazing has the following advantages compared with other methods: non-touch heating, melting bandwidth, no need for any auxiliary things, can be equipped on the double-sided printed circuit board with double-sided components after processing. Repetitive operation is stable. The flux has little pollution to the welding material, and the laser irradiation time and output power are easy to control, and the laser brazing yield is high. Laser beam is easy to complete the beam splitting. It can be used for time and space cutting with optical elements such as semi-lens, mirror, prism, scanning mirror and so on, and multi-point simultaneous symmetrical welding can be completed. Laser brazing usually uses laser with wavelength of 1.06um as heat source, which can be transmitted by optical fiber. It can be processed in parts which are difficult to be welded by conventional methods and has good flexibility.

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