Patent ID: 8920079

Claim:
A joined product comprising a cemented carbide sintered compact serving as a first material to be joined and a cBN sintered compact or a diamond sintered compact serving as a second material to be joined, said first material to be joined and said second material to be joined being joined by a joining material that does not form a liquid phase at a temperature lower than 1000° C. and that is placed between said first material to be joined and said second material to be joined, and joining by said joining material being performed by resistance heating and pressing at a pressure of 0.1 to 200 MPa, wherein by said resistance heating, said first material to be joined generates heat and is joined more preferentially than said second material to be joined, wherein a binder phase of said joining material and/or said first material to be joined has a nickel content of 30 vol % (percentage by volume) or less.