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Metal die for pressure processing and pressure processing method

A metal mold and pressure technology, which is applied in the field of pressure processing, can solve the problems of burning at the front end of the punching punch, deburring punch 102, breakage of the deburring punch 102, unsuitability for use of water or water-based lubricating fluid, etc., to achieve simplification Effects of processing equipment and processing lines, improving lubrication and cooling efficiency, and improving life

Inactive Publication Date: 2008-04-30
PANASONIC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, metal molds including such conventional lubricating oil passages and injection holes are not suitable for use with water or water-based lubricating fluids
This is because, using such a conventional metal mold, the aluminum plate with a lubricating film is punched while being lubricated by a water-based lubricating fluid, and the front ends of the punching punch 101 and the deburring punch 102 will be damaged due to insufficient lubrication. Internal burns, deburring punch 102 broken

Method used

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  • Metal die for pressure processing and pressure processing method
  • Metal die for pressure processing and pressure processing method
  • Metal die for pressure processing and pressure processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 2

[0079] Reference below Figure 5 Embodiments of the present invention that are different from the above-described embodiments will be described. Figure 5 It is a partially enlarged longitudinal sectional view showing Embodiment 2 in which the die for press working of the present invention is applied to a die apparatus for punching and deburring.

[0080] The difference between this metal mold for press working and the metal mold for press working in Embodiment 1 is that no lubricating liquid pool is formed on the outer peripheral surface of the overlapped portion of the punching punch, and a lubricating liquid pool is formed on the inner periphery of the overlapping portion of the deburring punch. A pool of lubricating fluid is formed on the surface, therefore, the same symbols are used to represent Figure 1 and Figure 5 The same elements in the above, and their detailed introductions are omitted.

[0081] refer to Figure 5 , the lubricating liquid pool 10 is formed on t...

Embodiment approach 3

[0086] Reference below Image 6 Embodiment 3 of the present invention will be described. Image 6 It is a partially enlarged cross-sectional view of the vicinity of the front end of the punching punch in which the lower edge of the small-diameter portion forming the lubricating liquid pool is chamfered in the die for press working similar to Embodiment 1 of the present invention. The only difference from Embodiment 1 is that in this piercing punch, the lower edge of the small-diameter portion forming the lubricating liquid pool 10 is chamfered. Therefore, use the same reference numerals to denote Fig. Image 6 the same components, and their detailed descriptions are omitted.

[0087] refer to Image 6 In the lower edge of the small-diameter portion of the lubricating liquid pool 10 constituting the punch 1, a chamfered portion 51 having an arc-shaped cross section is provided. Therefore, the lubricating liquid supplied to the lubricating liquid pool 10 through the lubricat...

Embodiment approach 4

[0090] Hereinafter, FIG. 7 shows various shapes of the lubricating liquid pool provided on the male die, that is, the piercing punch. The lubricating liquid pool provided on the male die is any one of taper, recess, step and groove on at least a part of the outer peripheral surface of the overlapping part of the male die or a combination of these shapes. Therefore, as the shape of the lubricating liquid pool, it can be adapted to the degree of lubrication required by the metal mold, the strength of the metal mold or the design of the stamping device, etc., and the tapered part, concave part, Steps and grooves or a combination thereof. Moreover, these tapered parts, recesses, steps and grooves, etc. can be arranged on at least a part of the outer peripheral surface of the overlapping part of the male mold, and can also be arranged on the entire outer peripheral surface of the overlapping part of the male mold.

[0091] FIG. 7( a ) shows an example in which the lubricating liqu...

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Abstract

The present invention provides a metal mould for pressure processing and pressure processing method. When a male die (1) and a female die (2) are mutually fitted to cut a material, an outer peripheral surface (13a) of the male die (1) and an inner peripheral surface (24a) of the female die (2) are overlapped. By forming the whole or a part of a lubricating liquid reservoir (10), in which a lubricating liquid is reserved, on the surface (13a) or the surface (24a), the lubricating oil is certainly supplied to a cutting part, so as to eliminate the problem of deficient lubrication when cutting material.

Description

technical field [0001] The present invention relates to a metal mold for press working used in cutting or punching of metal plates, etc., and more particularly to a press working used in the manufacture of fins used in heat exchangers such as coolers A metal mold and a press working method using the metal mold. Background technique [0002] Conventionally, fins used in heat exchangers such as automobile coolers and room coolers have been manufactured by press working as shown in FIG. 11( a ). This press working is mainly composed of the following steps: a preforming process for making the metal plate to be processed such as aluminum easy to process, punching for removing burrs while punching the preformed metal plate, and deburring (punching) Burring) process, shaping (ironing) process of forming a collar from the protruding portion of the hole periphery processed on the metal plate, and flanging process of bending the front end of the formed collar. By performing such pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D37/18B21D28/00B21D28/34B30B15/34
CPCB21D28/34B30B15/0088B30B15/34Y10S100/00
Inventor 村田敬一
Owner PANASONIC CORP