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Laser cutting galvanized steel technology

by:J&D WATER     2020-03-25
Today's sheet metal enterprises, with laser cutting are common. The advantages of laser cutting is that it is a kind of out of touch with material processing method, so will not damage plate surface, and cut off the surface does not have burrs, is a kind of can slash process after the processing method. However, in the laser cutting also will encounter all sorts of practical insurmountable problems. Here we will focus on the more commonly used in daily processing of galvanized steel sheet cutting difficulties and solutions. As everybody knows, the role of the galvanized steel sheet, is through galvanized inside to protect the surface of carbon steel, the long-term use of a plate is not easy to rust. Will this plank while than ordinary carbon steel plate a little bit expensive, but due to the need to rust after the coating process, so from the perspective of the cost of the entire product, or a deal. But after laser processing, is not the case. From the Angle of auxiliary gas, generally there are three kinds of galvanized steel plate cutting process, i. e. air oxygen cutting, cutting and nitrogen gas cutting. First we analyze the merits and demerits of the three cutting processes: air cutting: the advantage is that the processing cost is extremely low, only need to consider the laser itself and the air compressor of electricity can, without having to produce high auxiliary gas cost, and on the sheet cutting efficiency can match nitrogen gas cutting, is a kind of economical and efficient method of cutting. But the shortcomings are also apparent on the surface of the cut off. First of all, air cutting section will produce bottom burr, laser processed products also have to pass deburring of secondary processing, such as bad for the entire product production cycle. Next, the cross section of air cutting easy black, influence the quality of the products. Advantages of laser processing, therefore, no need for subsequent processing cannot be reflected, in according to the machining process of galvanized steel sheet, so many enterprise is not willing to choose air cutting way. Oxygen cutting: this is the most traditional and most standard cutting method. Advantage is low cost of gas, but also in the mainly carbon steel sheet metal processing, auxiliary gas without frequent switch, easy to plant management. But the disadvantage is that after oxygen cutting, stay on the surface of the cut surface will have a layer of scale, if this kind of product with scale is directly welded, time grows, oxide skin fall off naturally. One of the reasons for this is galvanized sheet welding easy to virtual welding. Nitrogen gas cutting: using nitrogen for high speed machining, because use the effect of nitrogen is different from the fuel with oxygen, but to protect, so the cutting section does not produce scale. Many companies take a fancy to this advantage, so cutting tend to apply nitrogen of galvanized steel processing. But the nitrogen cutting faults are here: no protection due to the cutting section, so the product is easy to rust. And in order not to make the product rust, spraying had to once again, as a result, spend more cost of galvanized sheet, this is no more play the characteristics of the galvanized layer, have to say quite a pity. Metal laser cutting equipment recommendation: preferential deals offer 4007001618 【 Metal laser cutting equipment 】 It is mainly used for cutting stainless steel, carbon steel, aluminum, copper, aluminum, iron, gold, silver etc. Thickness is 1. 0 ~ 25 mm plate; 【 Stainless steel laser cutting equipment 】 Classic gantry double drive structure of stable and reliable, automatic switching table, at the same time of cutting up and down on another table, convenient and quick to save time; 【 Optical fiber laser cutting 】 With high-speed movement speed, acceleration and dynamic performance, is laser for efficient and specialized research and development of a product, its cutting 0. The speed of 5 mm stainless steel reached 100 m/min. 【 Carbon steel sheet metal laser cutting 】 Specializing in sheet metal processing industry demand for sheet of processing in the field of research and development design of laser processing equipment, it has a very high cost performance, with CNC system control, efficiency is much higher than in other laser cutting equipment for the board drive mode control. More laser metal cutting laser cutting steel plate laser cutting equipment
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