The pencil edging diamond wheels used for lateral automotive glass grinding are composed of a mixture of metal powders (bond) and dispersed super-abrasive diamond grits (having a 100 pm average size). The metallic bond consists of a ductile alloy (sintered Ag+Cu+Ti powder mixture) and a hard skeleton (W and cast iron). The principal characteristics expected are a good wear resistance as well as a good cuffing quality. In order to reproduce the industrial thermal cycle of the sintering manufacturing process in a traditional furnace, this cycle was simulated by dilatometric tests on green pellets of simplified metal powder mixtures. The aim was to determine the sintering behaviour of each component of the metallic bond.
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机译：用于汽车侧面玻璃磨削的铅笔磨边金刚石砂轮由金属粉末（粘结）和分散的超磨金刚石砂（平均尺寸为100 pm）组成。金属键由韧性合金（烧结的Ag + Cu + Ti粉末混合物）和坚硬的骨架（W和铸铁）组成。预期的主要特征是良好的耐磨性和良好的袖口质量。为了重现传统熔炉中烧结制造过程的工业热循环，通过对简化的金属粉末混合物的生坯进行膨胀计测试验，模拟了该循环。目的是确定金属键的每个组分的烧结行为。
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