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above: The operator is loading a 4,2 metre x 110mm diameter tube into the mandrel tools to punch various holes up to 32mm diameter in traffic light poles.
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above: components for an exhaust manufacturer who makes parts for a motor vehicle manufacturer in the the north east of the UK. The material is stainless steel and this machine was
required to edge notch the central rib of 3mm thickness. This was a particularly difficult application because the mandrel die has to be inserted into the tube for ‘reverse’ punching and the punch has a stub toe,
which leaves the scrap on the mandrel die. This is then blown off by a jet of air programmed into the controller of the machine cycle.
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These illustrations are typical of the varied application of our products and machines for flat sheet, sections, tubes and extrusions. For more details and examples of tube punching
applications, please visit our web site at www.tubepunching.co.uk which is devoted to tubes, hollow and box sections
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Below: an example of large tube punching used to produced traffic light poles of 110mm diameter, 4mm wall thickness and 4,2 metres in length
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Below: This is an example of mandrel punching where the mandrel is removable. The copper tubular component is slid onto the mandrel and then the whole is inserted into the tool body which
contains the punches. The scraps from the punching operation are contained in the mandrell. When the mandrel is withdrawn, the punched component can be removed and the scraps removed by tapping the mandrel on the
bed.
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