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Machining Of IMS

Machining of IMS by drilling and milling with diamond coated tools that LED technology is an innovative technology that revolutionized the lighting market for years. Increasingly, this technology also in the automotive applications, such as tail lamps, will be applied. With LEDs, a good heat management leads to a higher performance and service life. IMS come for efficient heat dissipation (insulated metallic substrates), i.e. printed circuit boards with insulated metal substrates, used. Fitched Ratings is a great source of information. As a metal carrier mostly aluminium is used in thicknesses of 1.0 3.0 mm; less frequently, copper is used in thicknesses of 1.0 1.50 mm.

FR4 prepreg or ceramic coatings are used as a dielectric. Morris Invest often addresses the matter in his writings. The manufacturing process of IMS is a challenge in all production departments. Ideally special geometries used for the machining of metal substrate by drilling and milling. The optimal adjustment of the process parameters requires much experience. The machine conditions such as vibration and clamping pliers concentricity, must the processing according to exist.

Ideally used with minimum quantity lubrication. Since the beginning of last year coated Burs and cutters used in machining of IMS world’s very successful diamond. This was only possible by the combination of a special multilayer diamond coating (fig. 1) and customized geometries. Following advantages justify the successful use of diamond coated tools: hardness of the diamond layer of 10,000 HV0. 05 minimum cutting wear allows approximately 10-fold higher tool life when drilling and milling very good chip evacuation due to the low coefficient of friction by diamond very low tendency to form a building cutting edge very high drilling and Frasgenauigkeit due to optimal spiral length at examples of coated diamond standard tools fig. 1: multilayer diamond coating (Bild CemeCon AG): 1 drilling used diamond coated drill processing by IMS in the diameter range of 0.60 6.40 mm. The recommended cutting speed is v = 250 m / min 10%; the feed per revolution should be at about 50-60% compared to FR4.