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Metal cutting machine what are the difficulties when cutting thick plate
by：ZORON Machinery
2021-01-29
The function of the metal cutting machine as well as the effect is very good, but this kind of metal cutting machine in cutting time also has the certain difficulty, we must pay attention to when using it.
Next, small make up to analyse the metal cutting machine in cutting for you what are the basic characteristics of thick plate.
with the rapid development of high power device manufacturing technology and the improving of the numerical control technology, processing equipment in recent years in the sheet metal cutting application market is expanding quickly. According to the market feedback information, as well as the thickness of the plate, cutting quality and cutting equipment price to segment the market application of sheet metal processing production, especially in the areas of small and medium-sized enterprise users is an urgent need to cut sheet metal thickness range, good cutting quality of the high power metal cutting machine of complete sets of processing equipment.
the difficulties in metal cutting machine cutting plate,
1. Kerf width is too narrow, the increase of heat loss. Lower cutting speed increase cutting area of the heat loss. Heat loss is the main form of heat conduction, the greater the thickness, the greater the heat conduction losses, the lower the cutting speed also. Incision at the bottom of the material removal becomes inconsistent, although through the thick plate, a large amount of slag bonding at the bottom. Hang slag formation is caused by low average incision at the bottom of the cutting temperature, the temperature is low because of big energy loss, this kind of circumstance of the incision quality usually is not high.
2. Smaller spot diameter, focal depth is limited. Thick sheet metal cutting, although can maintain cutting depth with high power density, but the beam diameter is small, kerf width is fine, is not conducive to cutting slag discharge. It is to spot patterns and laser beam collimation plastic range and puts forward the higher request, also for cutting metal medium thickness plate process quality brings great difficulty.
3. The role and influence of auxiliary gas quality and pressure. In the case of oxygen; When cutting carbon steel in thick plate oxygen up if you are the important role. The incident to the workpiece surface holes, when moving in the direction of the cutting beam, holes and surrounded by oxide melt kerf width. The purity of oxygen and pressure to cut has a great influence, with impurity, inappropriate pressure oxygen cannot provide enough energy to the melting of the incision at the bottom of the form of high liquidity, and thus reduce the cutting quality and cutting speed. By measuring the mass of the gas cutting seam location aided and pressure, and found that the more narrow kerf width, auxiliary gas effect is poorer, cutting quality of the more difficult it is to maintain, thus ensure the quality of suitable cutting seam width, auxiliary gas and air pressure control, it is important for the effect of the cutting quality.
4. The geometry of the difference makes the cutting quality of the inflection point decline. Cutting plate, the melt front Angle becomes prominent, this will cause the material to the absorption coefficient is reduced, and by increasing the cutting power, lower cutting speed to ensure the cutting quality.
metal cutting machine, with its high conversion rate, high cutting precision, flexible processing capacity, good cutting quality and adapt to the performance, will get more extensive application in the field of cutting. In addition, through continuous research of high performance, develop advanced optical cutting methods and form a complete set of equipment, looking for all kinds of cutting condition good cutting parameters, to improve the safety of cutting, will bring cutting more widespread application, achieve high efficiency, energy saving, high precision cutting.
that is metal cutting machine when the plate after cutting some of the basic difficulties, we know these difficulties is easier operating metal cutting machine.
with the rapid development of high power device manufacturing technology and the improving of the numerical control technology, processing equipment in recent years in the sheet metal cutting application market is expanding quickly. According to the market feedback information, as well as the thickness of the plate, cutting quality and cutting equipment price to segment the market application of sheet metal processing production, especially in the areas of small and medium-sized enterprise users is an urgent need to cut sheet metal thickness range, good cutting quality of the high power metal cutting machine of complete sets of processing equipment.
the difficulties in metal cutting machine cutting plate,
1. Kerf width is too narrow, the increase of heat loss. Lower cutting speed increase cutting area of the heat loss. Heat loss is the main form of heat conduction, the greater the thickness, the greater the heat conduction losses, the lower the cutting speed also. Incision at the bottom of the material removal becomes inconsistent, although through the thick plate, a large amount of slag bonding at the bottom. Hang slag formation is caused by low average incision at the bottom of the cutting temperature, the temperature is low because of big energy loss, this kind of circumstance of the incision quality usually is not high.
2. Smaller spot diameter, focal depth is limited. Thick sheet metal cutting, although can maintain cutting depth with high power density, but the beam diameter is small, kerf width is fine, is not conducive to cutting slag discharge. It is to spot patterns and laser beam collimation plastic range and puts forward the higher request, also for cutting metal medium thickness plate process quality brings great difficulty.
3. The role and influence of auxiliary gas quality and pressure. In the case of oxygen; When cutting carbon steel in thick plate oxygen up if you are the important role. The incident to the workpiece surface holes, when moving in the direction of the cutting beam, holes and surrounded by oxide melt kerf width. The purity of oxygen and pressure to cut has a great influence, with impurity, inappropriate pressure oxygen cannot provide enough energy to the melting of the incision at the bottom of the form of high liquidity, and thus reduce the cutting quality and cutting speed. By measuring the mass of the gas cutting seam location aided and pressure, and found that the more narrow kerf width, auxiliary gas effect is poorer, cutting quality of the more difficult it is to maintain, thus ensure the quality of suitable cutting seam width, auxiliary gas and air pressure control, it is important for the effect of the cutting quality.
4. The geometry of the difference makes the cutting quality of the inflection point decline. Cutting plate, the melt front Angle becomes prominent, this will cause the material to the absorption coefficient is reduced, and by increasing the cutting power, lower cutting speed to ensure the cutting quality.
metal cutting machine, with its high conversion rate, high cutting precision, flexible processing capacity, good cutting quality and adapt to the performance, will get more extensive application in the field of cutting. In addition, through continuous research of high performance, develop advanced optical cutting methods and form a complete set of equipment, looking for all kinds of cutting condition good cutting parameters, to improve the safety of cutting, will bring cutting more widespread application, achieve high efficiency, energy saving, high precision cutting.
that is metal cutting machine when the plate after cutting some of the basic difficulties, we know these difficulties is easier operating metal cutting machine.
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