Precision Engineering (181k) NEW !!
	Cleaning (335k)
	Heat Treatment (352k)
	Brazing (427k)
	Precision Assembly (204k)
	Waveguide (134k)

In order to fulfill the complex requirements of manufacturing microwave tubes, TMD has a wide variety of processing services combining modern equipment and specialist techniques, working to BS EN ISO9001 quality standard.

We now offer these specialised services to customers from the telecommunications, laboratory / scientific, medical, automotive and ultra high vacuum industries.

We combine many processes under one roof, with final inspection facilities and full traceability of materials, which is seen as a particular advantage.

For example, a UK manufacturer approached us with the challenge of producing a precision sub-assembly containing both metal and ceramic components. We were able to provide a complete service in-house, from machining the parts, through cleaning and surface treatment to the eventual assembly of the product. The customer was quick to report his satisfaction with the service, commenting that ‘dealing with TMD has taken a weight off my mind. It is a quality company delivering a quality product.’

Precision machining

We have invested substantially in modern CNC equipment and can undertake prototype or volume projects. Components and complex assemblies are designed in-house using the latest SDRC Ideas 3-D modeling software; this then interfaces with the SDRC generative machining CAM software linked directly to the CNC machines, which enables fast prototyping with increased efficiency and cost effectiveness. Alternatively, if required, we can work with our customers’ existing computer files in AEGIS or DXF format.

We also have specialist expertise in unusual and difficult materials such as high purity copper, tantalum, tungsten and molybdenum.

Chemical cleaning

We have a fully equipped modern cleaning plant capable of static or ultrasonic cleaning by aqueous/detergent or other approved solvents, to standards in excess of BS7773. Dry or wet abrasive cleaning is also available as required. A wide variety of sample sizes can be accommodated and all components are fully inspected and packed before shipment to the customer.

Heat treatment

We have extensive experience of heat treatment in hydrogen, vacuum, argon or air for purposes such as cleaning, de-gassing, annealing and stress relieving. A very wide range of modern furnaces enables many different sizes and materials to be accommodated. Both metals and ceramics can be processed - the only limitation being certain non-vacuum compatible materials, which may be restricted completely, or limited to specific furnaces only.

Brazing

Brazing is a core expertise at TMD, combining initial design of the brazed joint to ensure optimum success, design and manufacture of the brazing jigs, and full inspection of finished product. Full inspection includes helium leak checking and microsectioning of samples to reveal any flaws in the joint. Metal-metal and metal-ceramic assemblies are regularly produced, typically involving copper, stainless steel, copper-nickel, core iron, alumina, and beryllia. Brazing is carried out in hydrogen, forming gas (hydrogen/nitrogen) or vacuum as appropriate, at temperatures ranging from 705 – 2000C.

We have a particular skill in providing imaginative solutions to difficult brazing problems.

Precision Assembly

We have a fully equipped (European Standard Class 8) clean room with a range of microscopes, laser and spot welding equipment, and specialist hydrogen, vacuum and air furnaces for small-size components.

Waveguide Components

In support of our own amplifier production, we have recently recruited expertise in waveguide design, manufacture and testing and are now able to offer this service to the rest of the microwave community.

Our capability includes passive low loss rectangular and double-ridged waveguide components, adaptors and assemblies at frequencies from 1.0 to 40.0 GHz.