The gantry serves as a moving loading head in a high-speed pick-and-place machine. It must absorb the high acceleration and braking forces of the loading head while allowing only minimal positional deviation in three spatial directions. We achieve this with support elements that are fully connected to the inner wall of the square tube. In the joining process, we join 70 individual parts at the same time. After vacuum brazing, the flatness is 0.4 mm, the parallelism 0.2 mm (component length: 1082 mm).
The pick-and-place machines in PCB production require components that work at extremely high precision, take up little space and function with low vibration even at high speeds. This requires heavy-duty connections with a high connection quality. Vacuum brazing enables us to perfectly produce complex lightweight constructions and geometries, profile strips, hollow bodies and housings, or solder joints that are difficult to access.
Measurable weight savings can be achieved through a variety of material combinations such as copper, stainless steel and titanium. During brazing under vacuum, the uniform heating of the workpiece and the uniform lowering of the temperature remove stresses from the component. This increases stability and reduces susceptibility to cracking. The strength of the joint is close to that of the base materials. This allows thin-walled and complex-shaped components to be joined with little distortion.