| CLICK HERE FOR INDEX PAGE |
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| ROBIN DAY POLYPROP CHAIR - MANUFACTURING THE FRAME |
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| PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEET |
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The steel tube is cut to size using a guillotine. |
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The burr is removed by hand using a hand file. |
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A jig is used to form the tube / legs to the correct curve and angles, after heating to ‘red heat’. |
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The supporting rails for the underneath of the chair, are manufactured. The ends of the tube are ‘pinched’ so that welding is easier. |
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The supporting rails are drilled and ‘de-burred’ to remove sharp edges. |
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The joints are gas welded. These provide a permanent and strong joint, that allows a little flexibility in the frame. This absorbs sudden shocks, such as people sitting heavily on to the seat. |
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Metric screws are used to fix the seat in position. This means that the chair can be dismantled and repaired or recycled. |
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A final quality control test is carried out, checking for any faults. |
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| CLICK HERE FOR PRODUCT DESIGN INDEX PAGE |
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