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TiB2 rod, and method of fabrication and use

a technology of tib2 rods and electrodes, which is applied in the direction of manufacturing tools, welding/cutting media/materials, and welding apparatus, etc., can solve the problems of increasing the operating temperature of the electrode, requiring a higher welding current or welding time, and not meeting the corrosion-resistant requirement of regular sheet steels

Inactive Publication Date: 2006-02-09
HUYS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the progress in the automotive industry, regular sheet steels can not meet the corrosion-resistant requirement.
However, the resistance spot welding of zinc coated steels may necessitate a higher welding current or longer weld time as compared to uncoated bare

Method used

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Embodiment Construction

[0004] By way of general overview, this description pertains to a TiB2 rod and its fabrication for the use of producing TiB2 coating on resistance spot welding (RSW) electrode tip surfaces for welding applications in automotive, and electronic industries. There may be a rod of material for coating the tips of welding rods that includes TiB2 ceramic having good electrical and thermal conductivities and a high melting temperature. The new TiB2 rod may be used to produce a TiB2 coating on an electrode tip surfaces by ESD, which may tend to be low in cost and which may tend to produce a higher electrode life as compared to an embodiment of TiC coating.

[0005] In one embodiment, there may be a TiB2 coating rod for the use of coating on RSW electrode tip surface by ESD. That rod may have a chemical composition of, in wt %, 12-24 Ni, 4-10 Mo, 0.15-1.0 W, 0.15-1.0 Co, and balance TiB2. This rod may be used for electrospark deposition (ESD) on RSW electrode tip surfaces in automotive and ele...

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Abstract

A TiB2 rod, and a method of fabrication therefore are is provided. It may be used to producing a TiB2 coating on the tip surfaces of a resistance spot welding (RSW) electrode, such as may be of a type for welding applications in automotive, and electronic industries. There may be a rod of material for coating the tips of welding rods that includes TiB2 ceramic having good electrical and thermal conductivities and a high melting temperature. The new TiB2 rod may be used to produce a TiB2 coating on an electrode tip surfaces by ESD, which may tend to be low in cost and which may tend to produce a higher electrode life as compared to an embodiment of TiC coating.

Description

AREA OF APPLICATION OF INVENTION [0001] The TiB2 coating rod, such as may be used to provide by an electrospark deposition (ESD) coating layer on a welding electrode may be used in the field of Resistance Spot Welding (RSW) such as may be used, for example, in applications in industries such as the Automotive and Electronics industries. TECHNICAL BACKGROUND [0002] With the progress in the automotive industry, regular sheet steels can not meet the corrosion-resistant requirement. Various coated sheet steels, such as Zinc coated steels for example, may be found in an increasing number of applications in automobiles. However, the resistance spot welding of zinc coated steels may necessitate a higher welding current or longer weld time as compared to uncoated bare steel, because of the lower melting point of Zn and hence the reduced contact resistance as compared to bare steels. This may tend to increase the operating temperature of the electrodes. Under the combined effects of heat and...

Claims

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Application Information

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IPC IPC(8): B22F1/02C22C5/00B22F3/14B22F3/16B23K35/24B23K35/32B23K35/40C22C29/14
CPCB22F3/14B22F2998/10B23K35/327B23K35/402C22C29/14B22F1/0003B22F9/04B22F3/1021B22F1/09B22F1/12
Inventor DONG, SHIJIEZHOU, NORMAN
Owner HUYS IND
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