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电火花烧结钻头的研究是制造优质金刚石钻头的一个新工艺。它是六十年代开始发展的一项新型的粉末冶金热压成形技术。是将金属、非金属装入模具中，在特殊电源和轻压的相关作用下，粉末颗粒间产生微放电现象，引起多种活化作用，加速金属及合金扩散，使其易于合金化，经历放电活化和热塑变形，制取高性能制品的一种强活化、高效能的快速烧结。一、电火花烧结原理图1为电火花烧结金刚石钻头装置示意图，其烧结工艺如图2所示。
Research on EDM drill bits is a new process for making high quality diamond bits. It is a new type of powder metallurgy hot press forming technology that began to develop in the 1960s. Is the metal, non-metallic into the mold, under the special power and light pressure related to the role of micro-discharge powder particles between the phenomenon, causing a variety of activation, accelerate the proliferation of metals and alloys, making it easy alloying, through the discharge Activated and thermoplastic deformation, high-performance system for the preparation of a strong activation, high-performance rapid sintering. First, the principle of EDM Figure 1 EDM diamond drill bit schematic diagram of the sintering process shown in Figure 2.