Method for manufacturing large-scale long blanks with oblique lines

Abstract

The invention discloses a method for producing oblique line surface large-size strip-shaped blanks. The method is simple to operate and the production efficiency is increased. The method comprises the following steps: A optimizing the oblique line surface appearance of an oblique line surface blank into the poly line surface appearance to form poly line surface blanks; B processing one poly line surface of the poly line surface blank into a splice poly line surface, splicing the poly line surface blank with the other poly line surface blank which has horizontally rotated by 180 degrees along the splice poly line surface to form a blank with a quadrilateral bottom surface, wherein the interior angle of the quadrangle is smaller than 180 degrees; C splicing the two poly line surface blanks along the splice poly line surface to form one whole blank; D design a mould tool of the whole blank, mounting the mould tool on a controllable forging press, subjecting the raw material to one-heat mould forming by the mould tool to form a whole blank; E cutting the whole blank into two blanks along the track of the splice poly line surface. The method is adopted, the quality of the blanks is improved, the manufacture cost is reduced and the method is convenient to operate by workers.

Description

technical field [0001] The invention relates to a method for manufacturing blanks, in particular to a method for manufacturing large-scale elongated blanks with diagonal lines to solve the problem of manufacturing large-scale long blanks with diagonal lines. Background technique [0002] Known: "Large" long blanks with slanted lines: In the field of die forging, it usually refers to the slanted surface with a length greater than 5 times the width of the blank, a length greater than 2 meters, and a weight greater than 600Kg (in the front view of the blank) In the length direction, the surface with a degree relative to the other horizontal plane is called a slanted surface) and the blank is called a large blank with a slanted surface. [0003] Large-scale long blanks with oblique lines have the characteristics of long length, heavy weight, inconsistent lengths of the straight lines at the head and tail, complicated manufacturing, and difficult quality assurance. [0004] At p...

AI Technical Summary

Problems solved by technology

[0003] Large-scale long blanks with oblique lines have the characteristics of long length, heavy weight, inconsistent lengths of the straight lines at the head and tail, complicated manufacturing, and difficult quality assurance.

[0004] At present, this type of blank is manufactured by free forging hammer for multi-fire superimposed forging. In the batch manufacturing process, the shape of the oblique surface of each blank is inconsistent, and the degree of oblique surface of the oblique surface and the surface quality of the oblique surface are difficult to guarantee. Poor stability; at the same time, the manufacturing process is also a multi-fire manufacturing process, which has poor production traceability, low production efficiency, and difficulty in guaranteeing the microstructure and properties of the blank; the main reasons for the above shortcomings are poor manufacturing accuracy of the free forging hammer, many manufacturing fires, Uncontrollable factors such as human operation

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