Manufacturing method of cross forging

A manufacturing method, cross-shaped technology, applied in the field of manufacturing special-shaped forgings, can solve the problems of unqualified sampling performance, increased production costs, unqualified flaw detection, etc., and achieve the effect of qualified sampling, tight internal structure, and qualified flaw detection
CN102284673AActive Publication Date: 2011-12-21ZHANGJIAGANG HAIGUO HEAVY FORGING
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZHANGJIAGANG HAIGUO HEAVY FORGING
Publication Date
2011-12-21

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Abstract

The invention relates to a manufacturing method of a cross-shaped forging piece. The manufacturing method comprises the following steps of: a) pressing into a square shape; b) chamfering; c) pressing into marks: pressing into a round groove at the central line position of four chamfers of a blank; d) pressing into small angles: aligning the edge of a small triangular knife to the round groove, then pressing out a small triangular groove at each chamfering position of the blank respectively by adopting a pressing machine, and setting the length of the right-angled edge of the small triangular knife to be 0.08-0.12 of that of the cross-shaped forging piece; e) pressing large angles: arranging a large triangular knife in the small triangular grooves, then pressing out a large triangular groove at each small triangular groove respectively by adopting the pressing machine, and setting the length of the right-angled edge of the large triangular knife to be 0.25-0.40 of that of the cross-shaped forging piece; f) pressing with anvils: respectively arranging an upper anvil and a lower anvil at the two corresponding large triangular grooves, and then carrying out anviling on four bosses of the blank in sequence by adopting the pressing machine, thus obtaining a cross-shaped forging piece blank; and g) shaping. The manufacturing method is applicable to manufacture of the cross-shaped forging piece.
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Description

technical field

[0001] The invention relates to a method for manufacturing a special-shaped forging, in particular to a method for manufacturing a cross-shaped forging. Background technique

[0002] The structure of the cross-shaped forging is as follows figure 1 As shown, its shape is a cross. According to the current forging scheme, when manufacturing cross-shaped forgings, a press is usually used to press out such as Figure 5 The octagonal blank 6 is shown, and then the octagonal blank 6 is cut to produce a cross-shaped forging. Its shortcoming is: because the thickness of octagonal billet 6 is relatively thick, when adopting press machine to compact, the inside of octagonal billet 6 cannot be compacted completely, easily cause body sampling performance unqualified and flaw detection easily unqualified; In addition, to manufacture To obtain a cross-shaped forging, most of the blanks must be removed, and the material waste is serious, which greatly increases the produc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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