Invention Grant
- Patent Title: Method for making a blind hole
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Application No.: US16103917Application Date: 2018-08-14
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Publication No.: US11020871B2Publication Date: 2021-06-01
- Inventor: Tobias Geisler
- Applicant: Wolfgang Rixen , Gerrit Pies
- Applicant Address: DE Solingen; DE Solingen
- Assignee: Wolfgang Rixen,Gerrit Pies
- Current Assignee: Wolfgang Rixen,Gerrit Pies
- Current Assignee Address: DE Solingen; DE Solingen
- Agency: Fishman Stewart PLLC
- Priority: DE102017214210.3 20170815
- Main IPC: B21D28/24
- IPC: B21D28/24 ; B26F1/14 ; B21K23/00 ; B21K1/64 ; F16B37/04

Abstract:
A method for making a blind hole may include arranging a workpiece in a negative form with a first portion and a second portion. The first portion may include a recess. The second portion may include a guide for a punch. The recess may be arranged substantially coaxially to the guide. The method may also include displacing a material of the workpiece into the recess via pressing the punch into the workpiece. Additionally, the method may include pressing the punch into the workpiece in a first movement section with a first velocity. The method may further include further pressing the punch into the workpiece in a second movement section with a second velocity such that the material is sheared and is partly extruded into the recess. The method may include moving the first portion relative to the second portion and shearing off the material displaced within the recess.
Public/Granted literature
- US20190054647A1 METHOD FOR MAKING A BLIND HOLE Public/Granted day:2019-02-21
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