Metal wire and saw wire

The use of tungsten or tungsten alloy metal wires with electrodeposited abrasive particles addresses the durability issue of conventional saw wires, enabling high-cycle cutting operations and efficient reuse.

KR102991970B1Active Publication Date: 2026-07-15PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Application Number
KR1020237040767
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-07-15
Filing Date
2022-06-30
Publication Date
2026-07-15
Estimated Expiration
2042-06-30

AI Technical Summary

Technical Problem

Conventional saw wires exhibit insufficient durability, leading to frequent breakage during cutting operations.

Method used

A metal wire made of tungsten or a tungsten alloy with a high tungsten content and abrasive particles electrodeposited on its surface, designed to withstand a fatigue test with a maximum stress of 4400 MPa for 20,000 cycles or more, and a saw wire configuration that allows for reuse by regenerating abrasive particles.

Benefits of technology

The solution provides highly durable metal and saw wires that can withstand repeated cutting cycles without failure, reducing material waste and increasing efficiency in cutting processes.

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Abstract

The metal wire is made of tungsten or a tungsten alloy, and the number of cycles until it breaks is 20,000 or more when a fatigue test is performed at a maximum stress of 400 MPa in accordance with JIS C6821 standards.
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Citation Information

Patent Citations

  • Saw wire and cutting device

    JP2018187739A

  • Wire for electric discharge machining and manufacturing method thereof

    JP2021030352A