1) ultrasonically hard turning
超声硬切削
1.
The difference of cutting force and temperature distribution both conventional turning and ultrasonically hard turning 45 hardened steel with PCBN are investigated.
Marc,基于热弹塑性有限元方法,并在一定的假设条件下,建立了普通硬切削和超声硬切削45淬火钢的二维热力耦合模型。
2.
Utilizing MSC(Marc finite element software),2-D orthogonal thermal-mechanical coupling models are established based on the features of ultrasonically hard turning(UHT) and conventional hard turning(CHT) with PCBN cutting tool.
Marc中,针对PCBN刀具超声硬切削和普通硬切削的特点,建立了二维正交热力耦合模型,对这两种状态下的切削温度进行分析比较,发现超声振动状态下的切削温度明显低于普通状态;并且切削温度随切削深度及切削速度的增加而升高。
2) superfinish hard turning
超精硬态切削
1.
The residual stress formed on the surface of rolling bearing in superfinish hard turning will influence the fatigue life of rolling contacting after stress decay.
超精硬态切削在滚动轴承表面形成的残余压应力 ,经工作应力衰减后才成为影响滚动接触疲劳寿命的应力状态。
3) ultrasonic vibration cutting
超声振动切削
1.
With orthogonal test, investigation is done to the influence of stock removal and cutter material on the service life of cutting tools in cutting stainless steel (1Cr18Ni9Ti) with ultrasonic vibration cutting.
通过正交试验研究了超声振动切削不锈钢材料 (1 Cr1 8Ni9Ti)时切削用量和刀具材料对刀具寿命的影响 ,并与普通切削进行了对比试验 ,阐明了不锈钢加工采用超声振动切削的优越性 ,给出了合理的切削用量和合适的刀具材
2.
Cutting performance of metallic matrix particulate reinforced composites SiCp/Al in ultrasonic vibration cutting and common cutting is experimentally researched.
通过试验研究了普通和超声切削新型颗粒增强金属基复合材料SiCp/Al的切削特性 ,得到了超声振动切削该新材料的切屑形态、切屑变形系数、剪切角和表面残余应力的变化规律 ,研究表明 :金属基复合材料的切削过程不完全是塑性材料的切削过程 ,而是有些类似脆性材料的破坏形式 ,超声振动切削复合材料和振动切削其他塑性材料的规律较为相似 ,但由于材料本身的结构特点 ,形成的切屑仍属于塑性和半塑性的节状切屑 ,此外振动切削的切向残余压应力较普通切削大 ,在试验的切深下 ,残余压应力随切削深度的变化不显
4) Ultrasonic Vibration Cutting
超声波振动切削
1.
This paper deals with not only the roughness of the surface of GFRP and deoxidised copper but also the tool life of hardened steel and molybdenum by ultrasonic vibration cutting with artificial superhard tool.
研究了人造超硬刀具超声波振动切削纤维增强复合塑料和无氧铜的表面粗糙度以及淬火钢和金属钼的刀具耐用度，得到了一些重要的结果。
5) hard cutting
硬切削
1.
The main research contents and key techniques of some kinds of advanced cutting technologies, including high speed machining, dry machining, hard cutting, precision machining and virtual machining, are summarized in some aspects such as machine tools, cutting tools and appropriate process parameters.
从机床、刀具、工艺参数等方面综合介绍了几种先进切削加工技术 (包括高速切削、干切削、硬切削、精密切削和虚拟切削 )的主要研究内容及关键技
2.
In finishing process,because the workpiece quality and accuracy in hard cutting process is in comparison with that in grinding,good tool materialwith high properties should be required in hard cutting process.
硬切削作为“以切代磨”的新工艺是一种高效的切削技术,其加工质量及加工精度应达到磨削的要求,这就对刀具提出了较高的要求。
6) hard turning
硬态切削
1.
The effect of cutting parameters on cutting forces during hard turning hardened bearing steel GCrl5 with PCBN tool was studied.
通过系统的切削试验,研究了PCBN刀具硬态切削淬硬GCr15轴承钢时切削用量对切削力的影响规律,结果表明:径向力最大,其次是主切削力和轴向力;硬态切削粗加工时的切削力大致为精加工时的3倍;硬态切削力与切削深度和进给量在一定范围内呈线性上升的关系,而与切削速度呈非线性关系。
2.
The experimental results show that the hard turning work-pieces have better wear property than the grinding ones when wearing at low relative sliding velocity, even under high load, but worse when at.
针对硬态切削过程中工件被加工表面出现白层 ,表层组织和硬度均发生变化的现象 ,用PCBN刀具硬态切削和传统磨削的GCr15工件的耐磨性进行了对比试验。
3.
An experiment was conducted to determine the effects of cutting parameters and tool geometry on the surface roughness in the finish hard turning of the typical hardened bearing steel GCr15.
运用反应曲面法(RSM)建立了硬态切削表面粗糙度预测模型,通过试验验证了预测模型的准确性。
补充资料：超声
超声
UltrasofliCS
是指超出人耳听力范围的高频声(频率超过20000Hz）。超声具有与一般声音共同的物理性质，还具有一些其他重要的物理特性，如能够成束发射，直线传导，方向性好。传导过程中遇有声阻抗不同的反射界面时产生反射、折射、聚焦和散焦等现象。用于临床诊断的超声频率一般为2～7.5MHz。频率越高，对组织结构的分辨力越强，但远场声能容易被组织吸收、衰减，不易穿透较深的层次。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条