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Common laser welding nouns

by:J&D WATER     2020-03-30
Common nouns (1) power density laser welding machine/flare area of the peak power density = peak power/power = single pulse energy and pulse width x frequency (2) the average power = single pulse energy laser pulse waveform on the impact of pulse waveform on welding quality process parameters, one of the more important for thin plate welding. Metal surface of laser have higher reflection and reflectivity changing with surface temperature, during the period of a laser pulse, the metallic reflectivity change is very big, can be set up according to the characteristics of corresponding pulse waveform. (3) continuous laser pulse width of pulse refers to the laser output energy to focus on a pulse output, pulse width refers to the length of the output. (4) from the coke's influence on welding laser welding usually need a certain from coke, because the focus of the laser power density is too high, easy to evaporate into a hole, away from the focal plane, the power density distribution is relatively uniform. From coke way has two kinds: is from coke and negative from coke. Focal plane located above the workpiece is positive from coke, whereas negative from coke, according to the geometrical optics theory, when the positive and negative from equal focal corresponds to plane the same power density approximation, obtained greater penetration, but in fact this is the center of molten pool formed sag. When negative from coke, material internal power density is higher than the surface, easy to form stronger melting, gasification, polarized light can be delivered as material deeper. So in actual application, need deeper penetration is, the negative from coke, welding plate, appropriate USES is from coke. 5. Welding speed when the power must be weld penetration almost is inversely proportional to the welding speed, welding speed is too fast, the gas overflow, too late to weld easy to produce gas, and molten depth, cannot penetration; Welding speed is too slow, low productivity, heat affected zone often overheating coarse grains and brittle fracture, distortion and big laser welding equipment recommended: preferential deals offer 4007001618 【 Metal laser welding equipment 】 Suitable for all kinds of complex welding, the welding of different equipment and 1 mm thick seam welding; Multi-channel fiber optic mode, welding transfer at the same time; 【 Mould laser welding equipment 】 Applicable mould industrialized, used for precision mold repair, such as digital products, mobile phones, toys, automobile, motorcycle, mold and other mold manufacturing and molding industry. 【 Gold and silver jewelry laser welding 】 Mainly used in jewelry, such as electronics, communications, handicrafts and other industries; 【 Large laser welding 】 Application in automobile body covering parts of compound, such as car door, side wai, window, floor, warehouse, the warehouse before, trunk lid. 【 Automatic laser welding machine 】 Using numerical control software by moving or rotating workpiece computer control of mechanical system, so as to realize automatic welding 【 The laser spot welder 】 Can be used for jewelry, watches and clocks hairspring, integrated circuit lead all kinds of small, precise welding of heat sensitive parts of the YAG laser welding machine 】 High compactness, and strong weld, precise control, high power density, deep and narrow welds, welding seam and beautiful characteristics of laser welding equipment more laser welding laser welding machine
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