Embedded type hot die forging piston die

A hot die forging and mosaic technology, which is applied in the field of die forging, can solve problems such as die failure, easy cracking, and failure to increase production capacity, and achieve the effect of reducing the force on the die, reducing stress, and increasing the life of the die

Pending Publication Date: 2022-04-05
ZHEJIANG YUEJIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after continuous production, the mold will gradually fail, easy to crack, and the mold needs to be replaced frequently, the cost remains high, and the production capacity cannot be increased, so it is imperative to improve the life of the mold

Method used

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  • Embedded type hot die forging piston die
  • Embedded type hot die forging piston die
  • Embedded type hot die forging piston die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1, a kind of embedded hot forging piston die, as Figure 1-3 As shown, it includes two parts, upper mold 1 and lower mold 2.

[0039] The lower mold 2 includes four parts: core 21, inner ring 23, outer ring 24 and base 22. The four parts are embedded together. The inner ring 23 and base 22 are nested in the outer ring 24 from top to bottom, and the core 21 is nested Inside the inner ring 23 , the base 22 is located directly below the inner ring 23 and the core 21 . This split method can select different materials according to the stress of different parts, which can effectively reduce the stress of the part of the mold that is prone to cracking, and is also convenient for mold production; the contact surfaces between the core 21, the inner ring 23, the outer ring 24 and the base 22 Interference fit, which can avoid drilling burrs at the split position; a certain length of straight section needs to be set on the joint surface, which can play the role of anti-...

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PUM

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Abstract

The invention provides an embedded type hot die forging piston die. The embedded type hot die forging piston die comprises an upper die and a lower die, the upper die and the lower die are mutually matched and connected to form an inner cavity, and the inner cavity comprises a skirt part, a core part and a combustion chamber; the lower die comprises a core, an inner ring, an outer ring and a base which are embedded together, the inner ring and the base are nested in the outer ring from top to bottom, the core is nested in the inner ring, and the base is located under the inner ring and the core; the contact surfaces of the core, the inner ring, the outer ring and the base are in interference fit; a straight section with a certain length is arranged on a combined surface among the core, the inner ring, the outer ring and the base; a flash groove is further formed between the upper die and the lower die and communicated with the combustion chamber. According to the split mode, different materials can be selected according to the stress conditions of different parts, the stress of the easy-to-crack part of the mold can be effectively reduced, the service life of the mold is prolonged, and mold manufacturing is facilitated.

Description

technical field [0001] The invention relates to the technical field of die forging, in particular to an inlaid hot die forging piston die. Background technique [0002] With the rapid development of automobile engines, the market competition is becoming increasingly fierce. If the efficiency and production capacity are not improved, it will lose the opportunity in the process of capturing the piston market. However, after continuous production, the mold will gradually fail and crack easily, requiring frequent replacement of the mold, the cost remains high, and the production capacity cannot be increased. Therefore, it is imperative to improve the life of the mold. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an inlaid hot forging piston die with good formability and long service life. [0004] In order to solve the above technical problems, the present invention provides a mosaic-type hot forging piston die, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21K1/18
CPCB21K1/18B21J13/02
Inventor 骆春阳梅吟飞李理方振江张益
Owner ZHEJIANG YUEJIN MACHINERY
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