Abstract: A high-temperature joining furnace is presented, which is designed for example for the diffusion bonding of joining materials such as metals, plastics, ceramics and corresponding workpieces. The joining furnace comprises a heating chamber, a workpiece holder arranged in the heating chamber for receiving a workpiece to be processed in the joining furnace, a pressing device arranged and adapted to apply a pressing force to the workpiece, wherein the pressing device comprises a pressing plate for uniformly applying the pressing force to the workpiece, and is characterized in that the pressing plate is equipped with a pressing plate heating device for heating the pressing plate and/or the workpiece.

Abstract: The present invention discloses a cut-off tool holder (1) having a plate-like holder body (1?) which has a cutting-tool seat (123). The holder body (1?) has a clamping section (11) for clamping the cut-off tool holder (1) in a machine tool. In the holder body (1?) there is at least one cooling lubricant duct (193), which has at least one outlet opening (18a, 18b) at a side face (122?) of the holder body and leads obliquely out of the side face (122?). The outlet opening (18a) is oriented such that a cooling lubricant jet (K), which emerges from the cooling lubricant duct (193), can be directed onto a face of a cutting tool which is received in the cutting-tool seat (123).