论文部分内容阅读
瑞典Sandvik公司展出了铣削用的三种新牌号涂层硬质合金.GC120可用来铣钢,这是一种三涂层刀片。一、三两层为氮化钛,中间一层为碳化钛.另外两种牌号(GC310和GC320)是双涂层的,里层为碳化钛,外层为三氧化二铝,这两种牌号可用于铸铁铣削加工,其主要区别在于里层厚度不同.GC320涂层较薄,可在70—130米/分速度范围内进行铣削,GC310涂层较厚,可在100—200米/分速度范围内铣削.据Sandvik 宣称,在一家大型汽车厂对GC320进行的试验表明,其耐用度至少为普通硬质合金刀片的两倍.
Sandvik, Sweden, showcased three new grades of coated cemented carbide for milling, the GC120 being used for milling steel, a three-coat insert. One or three layers of titanium nitride, the middle layer of titanium carbide. The other two grades (GC310 and GC320) is a double coating, the inner layer of titanium carbide, the outer layer of aluminum oxide, the two grades Can be used for cast iron milling, the main difference is that the thickness of different layers.GC320 coating is thin, can be milled in the speed range of 70-130 m / min, GC310 thick coating, at 100-200 m / min speed According to Sandvik, tests at a large automotive plant on the GC320 show that it is at least twice as durable as conventional cemented carbide inserts.