What machining steps are carbides needed for Gerhard Melcher Carbides are needed for machining materials so in turning milling boring burring and reaming applications These materials can be steel cast iron stainless steel non ferrous metals or superalloys Carbides are even used in non machining shaping or wear protection And how are they used in the tool manu facturing sector what particular applica tions are carbides needed for here Gerhard Melcher Carbides are used in the form of indexable inserts as solid carbide rods or in the form of precision tools Would people come into contact with the material as an ordinary consumer Gerhard Melcher Directly Only very rarely Indirectly however on a daily basis Carbides are required in one form or other for the production of almost all of our everyday neces sities Whether manufacturing coins INTERVIEW WITH GERHARD MELCHER cans tubes of toothpaste cars aeroplanes or any number of other things carbides are everywhere Our last technical question Mr Melcher A material with properties like these is undoubtedly particularly demanding to manufacture What are the main consid erations in doing so and what makes the difference Gerhard Melcher Carbides are machined in their sintered state by grinding eroding lasering or hard turning and hard milling Of these grinding is the most common meth od for machining carbides The correct grain size for the grinding wheels tailored grinding parameters and optimal grinding pressure should result in minor tear off edges on the tool cutting edge in addition to minimal ghost lines with the aim of avoiding any negative influence on the operating life and performance of the tools At the start of the interview you explained where you first came into contact with carbides At the time how did your profes sional career look at that point Gerhard Melcher I started out as a design engineer in 1985 at Plansee Tizit in Reutte in Tyrol Austria and four years later I took over milling product management within that same company In 1995 I moved to Boehlerit in Kapfenberg Leitz Group where I directed product management application technol ogy and tool development I m now the head of machining sales and marketing What has been your most satisfying professional experience Gerhard Melcher From a tech nical perspective developing a competitive range of indexable milling inserts for Boehlerit and successfully bringing it onto the market despite all the resist ance we received from external consultants Besides that closing a cooperative marketing agreement with Horn in Tübingen for the turning and mill ing sectors in Germany and other important industrialised countries Could we have an overview of the most important milestones in your personal life Gerhard Melcher I was lucky enough to grow up in one of the most beautiful regions in Austria Carinthia near to the Wörthersee lake and I now live with my wife Clare who is from England and our son Henry and daughter Kate in Graz which is one of the most live able cities in Europe south of the Alps What are your personal interests when you re not grappling with the subject of carbides Are there parallels between your professional life and your private life 16 PERSPECTIVES

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