The flat forging machine is a horizontal crank press that has the die forging characteristics of a hot die forging press. The main difference between the flat forging machine and other hot die forging presses is that the flat forging machine has two mutually perpendicular parting surfaces. Working principle and characteristics of flat forging machine，The main parting surface is between the punch and the concave die, and the other parting surface is between the two divisible parts. Between the semi-concave dies, the splitting forms of the concave die include vertical splitting and horizontal splitting. When the flat forging machine works, there are two slide blocks with vertical movement directions. Since the main slide moves in the horizontal direction, it is called Flat forging machine.
The working process of the flat forging machine is: before starting the flat forging machine, the bar is placed in the groove of the fixed die, and the length of the deformed part of the bar is determined by the positioning of the anti-baffle. Then step on the foot pedal. During the advancement of the main slider, the movable die quickly enters the clamping state, clamps the bar, the front baffle recedes, the punch contacts the hot blank, and plastically deforms it until the groove is filled. until.Working principle and characteristics of flat forging machine， When the machine returns, the punch is withdrawn from the die, the movable die returns to its original position, and the forging is taken out from the die.
The die forging process of flat forging machine has the following characteristics.
1. During forging, the blank is placed horizontally, and its length is not limited by the working space of the equipment. Long rod forgings that are difficult to forge with vertical forging equipment can be forged, and long bars can also be used for continuous die forging.
2. There are two mutually perpendicular parting surfaces, which can forge forgings with concave stops and concave holes in two directions that are difficult to form with general forging equipment. The forgings are of good quality, with small machining allowances, smooth surfaces, and little or no flash.
3. It can realize various working steps such as gathering, punching, perforating, flanging, trimming, bending, flattening, cutting, pre-forging, final forging, etc., and can perform open die forging and closed die forging.Working principle and characteristics of flat forging machine， It is especially suitable for forging top-headed forgings with partial upsetting.
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4. High productivity, generally does not require auxiliary equipment such as edge trimming, correction, and finishing. When a flat forging machine with horizontal splitting dies is used, it is easy to operate and can easily achieve mechanization and automation.
5. The size of the original blank is required to be high, and high-precision hot-rolled steel or cold-drawn full-diameter steel is generally used. Otherwise, the die will not be able to clamp the bar tightly or produce large longitudinal burrs between the die; oxidation in the die cavity The skin is difficult to remove, so it is best to use little or no oxidation heating.
As a branch of the mechanical press, the flat forging machine can perform punching, bending, flanging, trimming and cutting operations in addition to the local polymerization step.Working principle and characteristics of flat forging machine Due to its high productivity, it is suitable for mass production. Therefore, it is widely used in automobiles, tractors, bearings, aviation and other industries.
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