CN103192077A

CN103192077A - Powder metallurgy forming upper inner punch capable of being replaced by ejector pin

Info

Publication number: CN103192077A
Application number: CN2013101307953A
Authority: CN
Inventors: 陈元升
Original assignee: Suzhou Netshape Composite Materials Co Ltd
Current assignee: Suzhou Netshape Composite Materials Co Ltd
Priority date: 2013-04-16
Filing date: 2013-04-16
Publication date: 2013-07-10

Abstract

The invention discloses a powder metallurgy forming upper inner punch capable of being replaced by an ejector pin. The powder metallurgy forming upper inner punch comprises a body. A product is disposed at the right end of the body, an upper outer punch is disposed on the outer layer of t he front half section of the body, the upper inner punch is disposed on the inner layer, and the novel ejector pin is disposed on the rear half section of the body. By using the upper inner punch in production, smaller size of products can be controlled effectively. In terms of die material selection, wear resistance of the upper inner punch is improved, breakage of the same is avoided, product quality is improved practically, and die manufacturing cost is saved. Product size can be controlled completely stably, the service life of a die is prolonged, and die cost is lowered greatly.

Description

Dash on the powder metallurgy forming that a kind of available thimble replaces

Technical field

Dash in the present invention relates on the powder metallurgy forming that a kind of available thimble replaces.

Background technology

Because the design of the powder metallurgy die of existing structure in the ordinary course of things, longer towards length in going up, particularly at the product external diameter hour, all there is congenital deficiency--easy fracture usually in its intensity.On selecting, material also is difficult to produce a desired effect.Select wearability material preferably, its toughness often can not possess simultaneously, the mould easy fracture; Select toughness material preferably, its wearability also can reduce relatively, and mould is easy to wear, can cause the product crackle, and it is bad discontinuous product to occur when serious, thereby causes greatly having some setbacks of production.

The outwash of closing in addition and last in dash and to be one, no matter be split type upper punch design or the design of monoblock type upper punch, often the inconsistent phenomenon of steel resilience can appear in outwash and interior dashing, thereby influences product size.

Summary of the invention

The objective of the invention is to overcome the above problem that prior art exists, dash in providing on the powder metallurgy forming that a kind of available thimble replaces, thus more convenient efficient.

For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:

Dash on the powder metallurgy forming that a kind of available thimble replaces, comprise body, the right-hand member of described body is product, and the preceding half section skin of described body is to go up outwash, and internal layer then is to dash in going up, and the second half section of described body is novel thimble.

It is further, described that to go up that the impulse face controlling dimension that dashes in outwash and described the going up requires be 0.03-0.06mm

The invention has the beneficial effects as follows:

Adopt dash in of the present invention go up produce after, can effectively control size less on the product, on mold materials is selected for use, can only improve its wearability, needn't worry its fracture, improved product quality conscientiously, saved the Mold Making cost; And product size is controlled stable fully, and improve die life, and die cost reduces significantly.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is upper punch forming surface schematic diagram of the present invention;

Fig. 3 is the schematic diagram of the local X of upper punch forming surface of the present invention.

Number in the figure explanation: 1, product, 2, go up outwash, 3, dash in going up, 4, novel thimble, 5, body.

The specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.

With reference to shown in Figure 1, dash on the powder metallurgy forming that a kind of available thimble replaces, comprise body 5, the right-hand member of described body 5 is products 1, the preceding half section skin of described body 5 is to go up outwash 2, and internal layer then is to dash 3 in going up, and the second half section of described body is novel thimble 4.

Further, the impulse face controlling dimension requirement towards 3 is 0.03-0.06mm in described upward outwash 2 and described the going up.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. dash on the powder metallurgy forming of an available thimble replacement, comprise body (5), it is characterized in that, the right-hand member of described body (5) is product (1), the preceding half section skin of described body (5) is to go up outwash (2), internal layer then is to dash (3) in going up, and the second half section of described body (5) is novel thimble (4).

2. dash on the powder metallurgy forming of available thimble replacement according to claim 1, it is characterized in that, the impulse face controlling dimension requirement of dashing (3) in described upward outwash (2) and described the going up is 0.03-0.06mm.