The ‘Fittings’ presses, as the name implies, were used in the manufacture of copper fittings, mainly tees, for domestic pipework using a hydrostatic process (also called hydroforming).
This is generally how the press worked: –
A number of straight lengths of copper tube were inserted into the lower split die. The press vertical ram was closed and acted as a hydraulic clamp on the split dies. The horizontal ram crosshead on each side of the press advanced simultaneously towards the centreline (these crossheads were linked with a rack to ensure equal movement). Each crosshead was equipped with hollow rams that entered and sealed inside the copper tubes. High pressure fluid was introduced and the pressure intensified by further ram movement thereby allowing the copper tube to deform internally and produce the ‘tee dome’, that, with further downstream work, resulted in the final product. The tooling and development at the time was all the property of Yorkshire Imperial Metals Ltd.
Fielding & Platt supplied a number of ‘Fittings’ presses during the ’60s and 70s, mainly to the UK and Europe.
Click on this hyperlink to read a bit more and view an animated simulation of the process.
Click on a photograph to enlarge an image.
Click on the hyperlink to see other Notable Orders from the 1960s
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