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Hard-material threaded connection

A hard material, threaded connection technology, applied in the direction of connection, rod connection, connection components, etc., can solve problems such as thread failure

Active Publication Date: 2014-12-17
CERATIZIT AUSTRIA GES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In practice, especially due to the different material properties of hard materials and component materials with higher elasticity, the problem arises that partial failure of threads can occur on structural parts made of hard materials

Method used

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  • Hard-material threaded connection
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example

[0051] Experiments were carried out in which internal threads with different pitches were formed in each case in substantially cylindrical structural parts made of hard material, to be precise hard metal, by means of a helical milling method.

[0052] In each case, the screw connections were produced by means of steel screws (phosphating 8.8 screw quality) with a metric M6 ISO thread (pitch 1.000 mm) and a thread depth of 15 mm. The yield strength of the screw reached a tensile force of 12864N and fracture occurred at 16080N.

[0053] In sample 1, an unmodified M6ISO thread (pitch 1.000 mm) was formed in hard material.

[0054] In Sample 2, an M6 thread having a pitch increased by 1% (pitch 1.010 mm) compared to the standard thread was formed in a hard material.

[0055] In Sample 3, an M6 thread having a pitch increased by 2% (pitch 1.020 mm) compared to the standard thread was formed in a hard material.

[0056] In Sample 4, an M6 thread with a pitch increased by 3% (pitch...

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Abstract

The invention provides a hard-material threaded connection comprising a structural component (2) and component (3) with a greater elasticity. The structural component has a hard material and a first threaded section (2a) formed in the hard material. The component (3) is provided with a second threaded section (3a) that interacts with the first threaded section (2a). The first threaded section (2a) and the second threaded section (3a) have different thread pitchs.

Description

technical field [0001] The invention relates to a hard material threaded connection, to a method for forming a threaded connection between a hard material and a component having a relatively high elasticity, and to a Structural member of the first threaded portion. Background technique [0002] Specifically, in the field of cutting machining of metal workpieces, it is known to use tools having a tool body and a replaceable tool, to be precise in the form of a tool head, fastened to the tool body. The tool in this case is usually made of a hard material and is designed to achieve cutting engagement with the workpiece, while the tool body is formed of a material that is more elastic (compared to hard materials) such as steel, and the tool tip Connect to other components of the machine tool. In this case, the tool body or the threaded body connected to the tool body forms a relatively elastic component and the bit is a structural part of hard material. [0003] In this conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/02
CPCB23B2251/02B23B31/11B23B51/02B23B2231/0204Y10T29/49826Y10T83/9457B23B51/00B23B2231/0244F16B7/18
Inventor 亚历山大·辛格-施内勒
Owner CERATIZIT AUSTRIA GES
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