Metallized ceramics - Import export

In the WTH 200.2, the following materials can be reliably brazed with active materials in a high vacuum. PCD (polycrystalline diamond) MKD (monocrystalline diamond) CVD diamond (chemical vapour deposition) PCBN (cubic boron nitride) and Hard metals as well Ceramics In the high-vacuum furnace WTH 200.2, our customers manufacture indexable inserts, dressing wheels, rotating tools and turning tools with blades made of natural diamond or MKD for polish turning. The vacuum brazing is flux-free. In the so-called active brazing process, titanium allows wetting of the surfaces. While cemented hard metals can also be inductively brazed, diamonds, CVD and ceramics must be actively brazed in a vacuum. When brazing PCD and PCBN, not only the hard metal substrate but also the PCD or PCBN layers are wetted.

The laser processing station VersaCut precisely ablates and cuts a large variety of materials, such as metals (stainless steel, nonferrous metals), ceramics like Si or AlN, and all kind of plastics. Depending on the indented use, the station uses different laser sources with the corresponding focusing optics. The modular VersaCut finds it application in research and production.A solid-state laser delivering short pulses in the nanosecond regime is ideal for cutting stainless steel, Kovar, brass and similar metals. The high peak power with a small focus on the target generates the necessary power density for clean and sharp cuts. There is however an impact on the surrounding area as some local heating occurs. The high peak power allows also for cutting and ablating plastics, even if the laser wavelength does not match the linear absorption of the plastic.

COD Sinter-HIP furnaces combine the dewaxing, vacuum-sintering and subsequent isostatic densification under pressure gas up to 100 bar of sinter parts made of hard metals or ceramics. COD furnaces optimize all the necessary process functions and combine them in one production equipment and process cycle in an optimal, fully automatic and reproducible manner. Applications: Vacuum- and pressure sintering of hard metal products, PM-high-speed steels and ceramics. Benefit for users: • Low operating costs due to low power and cooling water consumption • High product quality due to excellent temperature homogeneity in vacuum, during pressure gas injection and pressure sintering. • Rapid startup at user's site and productivity "from day one" due to complete pre-assembly and fully hot shop-test and TÜV-acceptance in the factory • Service and maintenance friendly design, high up-time