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Professional analysis of the bending process of metal shear plate?
Date of issue：2022-06-24 Number of visits：442 Publishing author：BangBaoWuJin
1. Blanking: There are mainly the following blanking methods:
Shearing machine: is the use of shearing machine shear strip simple materials, it is mainly for mold blanking forming preparation processing, low cost, accuracy is less than 0.2, but can only be processed without holes without cutting Angle strip or block.
Punch: is the use of punch in one step or more steps in the plate will be parts of the plate after punching forming various shapes of materials, its advantage is the cost of short hours, high efficiency, high precision, low cost, suitable for mass production, but to design the mold.
CNC CNC blanking, NC blanking first to write numerical control processing program, the use of programming software, will draw the expansion diagram written into CNC CNC machining machine recognizable program, so that according to these programs step by step a knife on the flat plate cutting the shape of the plate, but its structure by the tool structure, low cost, accuracy at 0.15.
Laser blanking, is the use of laser cutting, in the large plate will be cut out the structure of the plate shape, the same as NC blanking need to write laser program, it can be a variety of complex shape of the plate, the cost is high, the accuracy of 0.1.
Sawing machine: mainly used under aluminum profile, square tube, drawing tube, round bar material, low cost, low precision.
2. Bench work: countersunk, tapping, reaming, drilling countersunk Angle generally 120℃, used for rivets, 90℃ for countersunk head screws, tapping inch bottom hole.
3. Flanging: Also called pumping hole, hole, is in a small hole on the smoke into a larger hole, tapping again, mainly with the thickness of thin sheet metal processing, increase the strength and the screw thread turns, avoid sliding tooth, commonly used in thickness is thin, its around the normal shallow flanging, basic did not change, the thickness of thin thickness is allowed in the 30-40%, The maximum flanging height can be obtained when the flanging height is 40-60% higher than the normal flanging height. When the plate thickness is larger, such as 2.0 and 2.5, the plate thickness can be tapped directly.
4. Press: is the use of mold forming processing working procedure, general processing of punching and cutting Angle, blanking, punching convex hull (convex point), salt tear, suction hole and forming processing, the processing needs to have the corresponding mold to finish operation, such as punching blanking die, convex BaoMo, tearing mode, pumping hole pattern, forming mould, etc., operating mainly pay attention to the position, direction.
5. Pressure riveting: pressure riveting in terms of the company, the main pressure riveting nuts, screws, loose, etc., it is through the hydraulic pressure riveting machine or punch to complete the operation, riveting to the sheet metal parts, and riveting way, need to pay attention to the direction.
6. Bending; Bending is folding 2D flat pieces into D parts. Its processing needs to have a folding bed and the corresponding bending mold to complete, it also has a certain bending order, its principle is to the next knife does not interfere with the first folding, will produce interference after folding.
Shearing machine: is the use of shearing machine shear strip simple materials, it is mainly for mold blanking forming preparation processing, low cost, accuracy is less than 0.2, but can only be processed without holes without cutting Angle strip or block.
Punch: is the use of punch in one step or more steps in the plate will be parts of the plate after punching forming various shapes of materials, its advantage is the cost of short hours, high efficiency, high precision, low cost, suitable for mass production, but to design the mold.
CNC CNC blanking, NC blanking first to write numerical control processing program, the use of programming software, will draw the expansion diagram written into CNC CNC machining machine recognizable program, so that according to these programs step by step a knife on the flat plate cutting the shape of the plate, but its structure by the tool structure, low cost, accuracy at 0.15.
Laser blanking, is the use of laser cutting, in the large plate will be cut out the structure of the plate shape, the same as NC blanking need to write laser program, it can be a variety of complex shape of the plate, the cost is high, the accuracy of 0.1.
Sawing machine: mainly used under aluminum profile, square tube, drawing tube, round bar material, low cost, low precision.
2. Bench work: countersunk, tapping, reaming, drilling countersunk Angle generally 120℃, used for rivets, 90℃ for countersunk head screws, tapping inch bottom hole.
3. Flanging: Also called pumping hole, hole, is in a small hole on the smoke into a larger hole, tapping again, mainly with the thickness of thin sheet metal processing, increase the strength and the screw thread turns, avoid sliding tooth, commonly used in thickness is thin, its around the normal shallow flanging, basic did not change, the thickness of thin thickness is allowed in the 30-40%, The maximum flanging height can be obtained when the flanging height is 40-60% higher than the normal flanging height. When the plate thickness is larger, such as 2.0 and 2.5, the plate thickness can be tapped directly.
4. Press: is the use of mold forming processing working procedure, general processing of punching and cutting Angle, blanking, punching convex hull (convex point), salt tear, suction hole and forming processing, the processing needs to have the corresponding mold to finish operation, such as punching blanking die, convex BaoMo, tearing mode, pumping hole pattern, forming mould, etc., operating mainly pay attention to the position, direction.
5. Pressure riveting: pressure riveting in terms of the company, the main pressure riveting nuts, screws, loose, etc., it is through the hydraulic pressure riveting machine or punch to complete the operation, riveting to the sheet metal parts, and riveting way, need to pay attention to the direction.
6. Bending; Bending is folding 2D flat pieces into D parts. Its processing needs to have a folding bed and the corresponding bending mold to complete, it also has a certain bending order, its principle is to the next knife does not interfere with the first folding, will produce interference after folding.
