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National Standard Carbide Brazed Tips
A guide to the applications of cemented carbide brazed tips:
♦The structure of brazed tips tools should be tough enough.
Enough toughness shall be guaranteed by the maximum allowable sizes of the tips and by using a rather strong steel grade and heat treatment.
♦Cemented carbide tips should be strongly fixed securely.
The cemented carbide tips should have a secure fixation and it is guaranteed by the Flutes of the tool holders and the quality in welding, so the flutes of the tools holders must be selected based on the shapes and the geometrical parameters of the tips.
Before welding of the tips to the tool holders, a check must be done on the tips And the tool holders. An initial chesk must be done to ensure that there is no serious bending on the support surface of the tips. There shall be no serious carbulization on the welding surface of the tips and at the same time the contaminants on the surface of the tips and in the flutes of the tools holders must be eliminated to ensure the quality of a secure welding.
♦There are requirements for the welding materials.
In order to endure the toughness of the welding, a suitablewelding material must be selected. During the welding, good wettability and flowability must be guaranteed and the air bulbs must be got ridden of in order to ensure the sufficient contact of the welding material and the surface of the tips to be welded leaving nothing to be welded.
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