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Method for producing a blind hole in a metallic body

A technology for blind holes and metal workpieces, which is applied in the field of manufacturing blind holes, can solve problems such as no blind holes are found, and achieve the effect of avoiding plastic deformation and precise adjustment

Inactive Publication Date: 2015-11-11
沃尔夫冈.里克森 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far no evidence has been found to create blind holes without a drill

Method used

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  • Method for producing a blind hole in a metallic body
  • Method for producing a blind hole in a metallic body
  • Method for producing a blind hole in a metallic body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] according to Figures 1 to 4 , the manufacture or method for producing a blind hole 10 in a metal slotted nut 12 with in this case a curved surface will now be described. It is pointed out again that the description of the slotted nut is merely exemplary, since the method according to the invention can obviously also be used and applied to other metal bodies with curved surfaces.

[0028] figure 1 The initial position for the adiabatic movement of the blind hole 10 is shown. In this case, the workpiece 12 , in this case obviously a slotted nut 12 , is accommodated in the holder 14 in such a way that in this case the rounding of the semicircular cross section points downwards. The workpiece 12 to be processed is held on its upper side by a receptacle 16 which has a groove or cavity for the material to be extruded aligned with the punch 18 .

[0029] Thus, the slotted nut 12 or the raw section is secured from the bottom and the top.

[0030] from in all Figures 1 to...

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Abstract

The invention relates to a method for producing a blind hole (10) in a metallic workpiece having at least one curved surface. One part of the material is pushed starting from approximately the horizontally extending curved tangent and from there approximately perpendicular in the direction of the material of the workpiece by means of reciprocating movement. Said method consists of the following steps: a) providing the workpiece with a matrix-type receiving element (16) for the material which is to be displaced; b) pushing the workpiece material by means of a stamp in the axial direction of the receiving element (16), said material stamped by the stamp is initially sheared in an adiabatic state and flows partially into the receiving element (16); c) removing (16) the material projecting from the receiving element.

Description

technical field [0001] The invention relates to a method instead of drilling for producing blind holes in metal workpieces having at least one curved surface, starting from an approximately horizontal contact tangent and facing approximately transversely to the material of the workpiece direction for processing. Background technique [0002] Chipping is unavoidable in conventionally drilled blind holes. Furthermore, such boreholes can only be introduced at a limited speed. [0003] The drilling speed cannot be increased by conventional means. Among other things, there is also the concern that the workpiece must be cleaned and deburred, which takes additional time. [0004] So far, no evidence has been found to make blind holes without a drill. Contents of the invention [0005] It is therefore the object of the present invention to develop a method which makes it possible to provide blind holes in metal bodies with greater precision and at the same time at significantl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K23/00B23P15/00B21K1/64F16B37/00
CPCB21K23/00B21K1/64B21J5/002B21J5/06
Inventor 沃尔夫冈.里克森格里特.皮尔斯T.盖斯勒
Owner 沃尔夫冈.里克森
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