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Gold Prospecting
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Emergency arc welder
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<blockquote data-quote="Manpa" data-source="post: 616171" data-attributes="member: 11747"><p>My understanding of fixing carbide tips to steel comes from circular saw blades, the carbide teeth are in fact brazed to the plate, this is in fact the weakest part of the blade and thats why the teeth are often lost when hitting a nail or staple etc whilst recycling timber. Irwin sell a circular saw blade now which has a welded bond which was perfected over numerous years, the carbide tooth is exceptionally small and of a different grade, hardness to their none Weldtec blades. We used to demo the Weldtec blade cutting thru a piece of framing timber with 12mm reinforcing rod and nails epoxied in the wood to show that it would not throw teeth.</p><p>I think from memory one of the difficulties to overcome was you have three materials all of whom react to heat at different levels, steel plate, tungsten carbide and your brazing or welding material.</p></blockquote><p></p>
[QUOTE="Manpa, post: 616171, member: 11747"] My understanding of fixing carbide tips to steel comes from circular saw blades, the carbide teeth are in fact brazed to the plate, this is in fact the weakest part of the blade and thats why the teeth are often lost when hitting a nail or staple etc whilst recycling timber. Irwin sell a circular saw blade now which has a welded bond which was perfected over numerous years, the carbide tooth is exceptionally small and of a different grade, hardness to their none Weldtec blades. We used to demo the Weldtec blade cutting thru a piece of framing timber with 12mm reinforcing rod and nails epoxied in the wood to show that it would not throw teeth. I think from memory one of the difficulties to overcome was you have three materials all of whom react to heat at different levels, steel plate, tungsten carbide and your brazing or welding material. [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Emergency arc welder
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