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Embed code for: titanium alloy 1译后稿1-1
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High cutting speeds can be used to significantly lower the costs of production. 高切削速度可用于显著降低生产成本。 However, the tools currently in use are easily available, but have a very short lifespan. 然而，目前使用的工具很容易获得，但寿命很短。 Studies have revealed that an uncoated carbide tool has a life comparatively higher than the coated ones, especially at low cutting speeds, albeit the coated ones are very ideal at very high speeds of cutting. 研究表明，一个未涂覆的硬质合金刀具的寿命相对较高的涂层的，特别是在低切削速度，虽然涂层的非常理想，在非常高的切削速度。 Consequently, it is conceivable that the metallurgical business corporations will greatly benefit from the discovery in choosing the proper speeds of cutting corresponding to the right cutting tool (Hao et al., 因此，可以想象的是，冶金企业将极大地受益于发现在选择适当的速度切割相应的刀具（郝等。， It should be noted, however, that the machining of titanium and its alloys poses many challenges because of the abrupt changes and alterations that emerge during the machining process. 然而，应该注意到，钛和它的合金的加工带来了许多挑战，因为在加工过程中出现的突然变化和改变。 They exhibit atypical characteristics, which have led to their classification as hard-to-machine metals. 他们表现出非典型的特点，这导致了他们的分类难加工金属。 Importantly, the materials used for cutting tools have a great impact upon the machining processes. 重要的是，用于切削刀具的材料对加工过程有很大的影响。 Therefore, it is important to select the best available cutting tool for a particular machining operation. 因此，为特定的加工操作选择最佳切削刀具非常重要。 In fact, to have a perfect surface finish, the cutting tool ought to have unique characteristics such as strength, hardness and wear resistance. 事实上,为了有一个完美的表面光洁度,刀具应该有他独特的特点如强度、硬度和耐磨性。 Depending upon the material, the cutting tool with good qualities is picked for the purpose of achieving improved machining. 根据材料、具有良好的品质的切削工具是为了实现改进的加工。 In this regard, the cutting tools are generally categorized into some classifications. 在这方面,刀具通常分为一些小类。 Most common of such classifications include the high-speed steels, carbides, diamond, coated tools, whisker-fortified tools, silicon-nitride-based tools, alumina-based tools, cast cobalt alloys, and cubic-boron nitride. 最常见的分类包括高速钢,合金,钻石,涂布工具,晶须强化工具,氮化硅基工具,氧化铝工具,铸造合金、钴和立方氮化硼。 Currently, the carbides are the most common and important since they are easily adaptable and inexpensive for an extensive variety of applications (Mahmud et al., 目前,碳化物是最常见的和重要的,因为他们适应性强，价格低廉，应用广泛（Mahmud等，2012）。 An assessment of the functional 11 features of the uncoated and coated carbide tools has shown that the uncoated tool have a great extent of hardness over a broad range of temperatures, resistance to wear, toughness and flexibility. 对未涂布工具与涂布工具的11个功能特点的评估表明：未涂布工具有很大程度上的硬度在温度、耐磨性、韧性和灵活性的广泛阈值区间内具有极强的硬度范围。 Also, they have a broad spectrum of usage; distinct the coated carbides that have improved wear resistance over the uncoated ones. 同时,他们有一个广泛的使用,并将提高了耐磨性的涂布碳化物与未涂布碳化物区别开来。 They also exhibit good thermal and frictional characteristics (Kaynak, 2014). 他们还表现出良好的导热特性及摩擦特性(Kaynak,2014)。
2014). Their composites have been featured as having distinctive routes by virtue of their metallurgical nature.