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1)  cutting tool coating material
刀具涂层材料
2)  cladding tool material
覆层刀具材料
1.
The ceramic metal cladding tool material prepared by cladding the ternary boride base ceramic on the metal substrate is a new type of tool material which has great developable potentiality because of having functional dominances of both high hardness, excellent wear resistance of ceramic and high strength, toughness, good thermal conductivity of metal.
通过在金属基体上覆层三元硼化物基陶瓷制备出的陶瓷—金属覆层刀具材料同时具有陶瓷材料硬度高、耐磨性好和金属材料强度高、韧性好、导热性好的性能优势 ,是一种极具发展潜力的新型刀具材
3)  coated cutting tool
涂层刀具
1.
The trend of development and status in the research of diamond coated cutting tools are introduced.
本文着重介绍了金刚石涂层刀具的发展动向及现状,并通过金刚石涂层刀具的切削试验表明了金刚石涂层刀具的使用寿命明显高于未涂层的硬质合金刀具,采用金刚石涂层刀具进行切削可以获得更高的表面加工质量和生产率。
2.
The cutting experiments show that the cutter can acquire high surface quality in dry-machining of silicon-aluminum alloy, and the tool life is longer than that of uncoated cutting tool in cutting of quenched steel.
采用dc反应磁控溅射法在硬质合金 (YT15 )上沉积氮化碳超硬涂层 ,将其应用于干切削领域 ,通过对硅铝合金和淬火钢的干式切削试验 ,研究了氮化碳涂层刀具的切削加工性能。
3.
Coated cutting tools are advanced cutting tools with good cutting performance.
涂层刀具是一种先进的切削刀具,由于其优良的切削性能而受到人们的青睐。
4)  coated cutter
涂层刀具
1.
According to the complex structure of the shaped hole in a disc of an aircraft engine and the characteristic of the thermal-resistant Nickel-based alloy which is difficult to be machined, the processing tests had been done with the different combination of drilling, milling and grinding process, selection of the new coated cutter and corresponding cutting parameters.
根据航空发动机涡轮盘上异形孔结构复杂及镍基高温合金材料难加工的特点 ,采用钻削、铣削与磨削工艺的不同组合、选用新型涂层刀具和相应的切削参数进行了工艺试验。
2.
In this paper, the cutting performance between the coated cutters and the non coated cutters are compared, and the tests are analyzed.
文章介绍了涂层刀具与未涂层刀具在切削加工中的性能比较及试验分析。
5)  cutting tool coating
刀具涂层
1.
Traditional monolayer cutting tool coatings develop into the multi-element and multilayer coatings along with the development of coating technology.
具有高硬度,高耐磨性及抗高温氧化性能的纳米技术刀具涂层是近来研究的热点,并显示出良好的应用前景。
2.
The sorting method of cutting tool coating is put forward and the choice basis of coated cutting tool is analyzed.
提出了刀具涂层的分类方法,分析了涂层刀具的选择依据。
6)  coated tool
涂层刀具
1.
In this paper, the dry-cutting tests were carried out by diamond film coated tool on Si-Al alloy and this tool's cutting properties were studied.
文中通过用金刚石薄膜涂层刀具对含硅量不同的硅铝合金进行干切削试验,探讨其切削性能。
2.
Through the cutting experiments in which SiC p/Al composites are machined with CVD thin film diamond coated tools, the influences of cutting parameters, tool materials, geometrical parameters of tools and workpiece materials on the tool wear are studied.
通过用CVD金刚石薄膜涂层刀具切削加工SiC颗粒增强铝基复合材料的试验 ,研究了切削参数、刀具材料、刀具几何参数和工件材料对CVD金刚石薄膜涂层刀具磨损的影响规律 ,同时研究了SiCp/Al复合材料的切削加工性能。
3.
For improving the wear resistance of TiN coated tools, (Ti,Al)N coating were fabricated.
为了提高TiN涂层刀具的耐磨性 ,采用钛铝合金靶 ,以真空阴极电弧沉积法制备了(Ti,Al)N涂层。
补充资料:涂层刀具的合理使用
被涂刀具表面应是光亮的磨光面,刀具各工作表面上不得有锈斑、磨糊、氧化、崩刃等缺陷,要求刃口上无毛刺。前、后刀面上的表面粗糙度应达到Ra<0.8~1.25μm。表面粗糙度值愈小,涂层的结合度愈好。此外,刀具表面的清洗质量也十分重要。
    刀具基体材料
    涂层刀具的基体材料与涂层材料应合理匹配,须根据不同的加工要求选用。涂层高速钢刀具的基体,既可用W6Mo5Cr4V2(M2)的通用型高速钢,也可用含钴的超硬高速钢和粉末冶金高速钢(PM HSS)。因粉末冶金的基体均匀,故使用效果好。加工钛合金时,推荐用含钴超硬高速钢如W2Mo9Cr4VCo8(M42)作为刀具的基体材料。对於涂层滚刀,当以正常切削速度(<45m/min)加工齿轮时,崩刃是滚刀磨损的主要原因,因此应选择韧性较好的W6Mo5Cr4V2高速钢作为刀具的基体材料;而在高速滚齿时(切削速度大於100m/min),月牙洼磨损是滚刀磨损的主要原因,因此应选用耐热性和耐磨性较高的含钴超硬高速钢或CW9Mo3Cr4VN高速钢为刀具的基体材料。
    涂层硬质合金刀具的基体,在加工钢材时,宜选择加工钢材的硬质合金,如WC-TiC-Co或WC-TiC-TaC-Co类合金(P30用得较多);加工铸铁和有色金属时,宜选择WC-Co类合金(K20用得较多)。
    被加工材料的硬度及切削加工性,对涂层刀具的使用效果也有一定影响。试验证实,涂层刀具最适於切削高硬度和耐磨合金一类难加工材料。
    刀具的几何角度
    由於涂层的润滑性好,所以涂层刀具工作时常会在工件表面上打滑,为此涂层刀具上的後角应比未涂层刀具的後角略大。实践表明,对铰刀等一类精加工刀具,加大後角後,可使刃口锋利,切屑形成容易,打滑现象明显减少,刀具的使用性能提高。
    切削用量和切削液
    为了充分发挥涂层刀具的性能,必须正确选用切削用量和切削液。涂层刀具由于耐热性好,抗月牙洼磨损能力强,故可采用较大进给量和切削速度工作,但首先应选取较大进给量。通常涂层高速钢刀具采用的进给量比未涂层刀具提高10%~100%,提高20%~30%的切削速度是合适的。为了提高工效,涂层硬质合金刀具也可采用比未涂层刀具高25%~70%的切削速度进行切削。目前,用涂层硬质合金通用刀具加工中碳结构钢时的切削速度,立铣刀可达100~150m/min,钻头可达80~100m/min;丝锥加工铸铁为20~40m/min。
    实践证明,使用20号机械油加10%煤油冷却时,可使涂层高速钢镗刀的寿命提高1~2倍。TiN涂层高速钢滚刀加工20CrMnTi(197HBS)钢制斜齿圆柱齿轮(模数m=5)时,使用20号机械油和煤油混合润滑,刀具寿命可提高5倍左右,即使重磨后也可提高2~3倍,干切时寿命仅提高1倍。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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