Composite body
A composite and integral technology, applied in the field of composites, can solve the problems of low bonding strength and achieve the effect of high bonding strength and high adhesion
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[0019] Example 1
[0020] A disc-shaped cBN sintered body having the composition shown in Table 1 and having a diameter of 30 mm and a thickness of 1.5 mm, and a disc-shaped cemented carbide having a diameter of 30 mm and a thickness of 3.0 mm having the composition shown in Table 2 were prepared. Using diamond abrasive grains, etc., the joint surfaces of all samples were mirror-polished, and then placed in acetone for 10 minutes of ultrasonic cleaning. Then, using a hot pressing apparatus, the bonding surface of the cBN sintered body and the bonding surface of the cemented carbide were overlapped, and the load shown in Table 3 was applied, and the temperature was raised from room temperature to the bonding temperature shown in Table 3 in a vacuum. Then, after holding the bonding pressure, bonding temperature, and holding time shown in Table 3, cooling was performed. After cooling, the applied load was removed to obtain a composite body in which the cBN sintered body and the ...
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[0031] Example 2
[0032] Prepare a cBN-40 mass % bonded phase with a composition of 60 mass % (composition of bonded phase: TiN, Al 2 O 3 , AlN), a disc-shaped cBN sintered body with a diameter of 30 mm and a thickness of 1.5 mm, and a metal phase with a composition of 89 mass % of WC-11 mass % (the composition of the metal phase: 95 mass % of Co-4 mass %) W-1 mass % C) disk-shaped cemented carbide with a diameter of 30 mm and a thickness of 3.0 mm. Using diamond abrasive grains, etc., the joint surface of the cBN sintered body and the cemented carbide is mirror-polished, and then placed in acetone for 10 minutes of ultrasonic cleaning. Then, using a hot pressing apparatus, the joint surface of the cBN sintered body and the joint surface of the cemented carbide were overlapped, and 1 kgf / cm was applied so that the position of the sample would not be displaced. 2 The temperature was raised from room temperature to 1250° C. in a vacuum while applying a load of pressure, and ...
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