PART 6 A Model Engineer's Clock

Continued from p.697 M.E.4730 November 17 Using modern technology in a traditional craft One of the objectives of this project was to make the best possible use of available modern technology to achieve the required traditional results. EDM (wire cutting) A major contribution was the use of Electrical Discharge Machining (EDM). This is an electro-thermal production process where a thin single strand of metal wire is used to cut through a workpiece (fig 10). A low DC voltage applied to the wire produces sparks where it contacts the metal workpiece and this erodes away the metal. De-ionised water provides a dielectric medium around the spark gap that washes away the oxides and debris from the spark erosion process. The workpiece is fixed to a table, which is moved past the…

You're reading a preview of

Model Engineer (Digital) - 1 Issue, Issue 4731

DiscountMags is a licensed distributor (not a publisher) of the above content and Publication through Zinio LLC. Accordingly, we have no editorial control over the Publications. Any opinions, advice, statements, services, offers or other information or content expressed or made available by third parties, including those made in Publications offered on our website, are those of the respective author(s) or publisher(s) and not of DiscountMags. DiscountMags does not guarantee the accuracy, completeness, truthfulness, or usefulness of all or any portion of any publication or any services or offers made by third parties, nor will we be liable for any loss or damage caused by your reliance on information contained in any Publication, or your use of services offered, or your acceptance of any offers made through the Service or the Publications. For content removal requests, please contact Zinio.