Many sheet metal processes are hot drawing processes made from thick or thin sheet metal. When billets are produced and machined at room temperature, it is completely indeterminate. The lift frame on the top of the train, the single-plate gate of the hopper car and its deep groove are typical examples. They are made from billets heated by hydraulic presses or punches of mechanical equipment. Hydraulic presses or punching machines of mechanical equipment are equipped with specially manufactured abrasives as required.
Cold rolling and forging, hammer forging and hydraulic press forging are very difficult. Each method usually has a well-defined field of application. Many parts are complex in design and cannot be manufactured by cold rolling or extrusion, so they must be manufactured by hammer forging or hydraulic presses. Certain shapes of drive shafts or nail puller heads are of this type and cannot be produced mechanically except by forging and forming. Hammer forging and hydraulic press forging are slow and expensive compared to cold rolling.
And every manufacturing process of forging must be done with great care, including heating before forging. Perhaps due to strict regulations on the production of high-quality steel castings, this impression is created in some units. Forged products appear to be higher than cold rolled products. In general, forging extends better across the entire thickness range than cold rolling of the same gauge, but if a given cross-section can be made by cold rolling and forging, the difference from heating, deformation rate, and its reduction From a point of view, the two methods can be equally selected, and then the quality of the cold-rolled product is compared with the quality of the steel casting.
A chip removal device for sheet metal processing includes: a base; a chip removal table is fixedly installed on the base; a cavity is arranged on the chip removal table; a plate body is arranged on the cavity; and multiple rows are provided. The plate body is provided with through holes for distribution, the through holes are circular holes, the plate body is covered with a second plate body, and the second plate body is provided with a plurality of second through holes. In the second plate body, the second plate body is conical, the second plate body is covered by the third plate body, and a plurality of third through holes arranged in rows are formed on the third plate body. The third through hole is a round hole and is arranged above the chip removal table. There is an air outlet member having a plurality of air outlet portions. Compared with the prior art, the utility model can effectively prevent the secondary pollution of the product.
The wire cutting method of 3D sheet metal processing is to make a simple fixture and perform wire cutting processing in combination with the 3D drawings of sheet metal processing. A simple tool can make a support fixture based on the contours of the profile, use multiple sets of flexible suction cups to hold the part, and establish a cutting coordinate system. The contour line is obtained by the projection method to form a line cutting path. According to this solution, the present invention converts the cutting trajectory of sheet metal processing with three-dimensional contours into one or more two-dimensional cutting trajectories, enters the wire cutting machine, and uses special fixtures to complete the cutting process, thereby reducing the development process of sheet metal processing. Moderate cost while ensuring cutting quality and efficiency. It is especially suitable for cutting and shaping very small batches and test samples.
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