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Precision Gauges for Underground Trains

Gauge for London Underground The client supplied 5 sample gauges to us and the first stage was to ascertain all the required dimensions and material of the parts. With some parts simply being machined from a single piece of metal and others requiring several parts assembled together, the best manufacturing and assembly techniques were worked out. The obtained dimensions could then be converted into a 3D CAD model in our CAD software Solid Works. With ease of manufacture a constant consideration during the design process. The sample gauges were originally made from varying width and thickness B01 tool steel but to reduce costs to the client we decided to standardize the part size with consent from the client. This allowed each gauges to be made from the same size material reducing machining time and material costs.

Guage precision engineering work for underground trainsOnce each gauge was modeled in Solid Works, manufacturing drawings could be produced for each part. These drawings were then sent to the client for their verification. Once verified the material could be ordered and manufacturing could start. The manufacturing drawings for the parts were then passed onto our CNC precision engineers. The programmes were produced in our CNC software Power Mill. With each gauge having its part number and gauge size machine engraved into each part. Then the gauges that needed assembling were assembled together, with each set of gauges being dispatched securely after clearing inspection.

Challenges lets up use all our Skills

The client and our team were very happy with the finished products for this job. Our team love a challenge and this was another job where it required us to use all our skills and ability. This is why people come back to Thompson Precision Engineers again and again!