【作者】 王磊；

【导师】 周宏；

【作者基本信息】 吉林大学 ， 钢铁冶金， 2006， 硕士

【摘要】 本论文的研究运用仿生非光滑表面原理对汽车制动鼓进行表面设计与处理,采用激光雕刻技术把制动鼓表面加工成具有凹坑状、条纹状、网格状的非光滑表面形态,以激光加工的电流、脉宽、工作台速度为变量进行正交设计。在常温和高温条件下,得出不同温度下各种非光滑形态对制动鼓磨损性能和摩擦系数的影响。最后分析仿生非光滑表面的磨损过程及尝试提出仿生非光滑单元体表面提高材料耐磨性的理论。从实验中得到了以下结论:(1)通过激光处理方法,得到比较理想的激光参数组合范围是:电流(250-300)A、脉宽(15-20)/ms、工作台速度(0.36-0.71)mm/s。(2)非光滑表面试样的耐磨性和摩擦系数均有提高,网格状最优,条纹状次之,凹坑状最差。(3)相同条件下的非光滑表面试样单元体硬度愈高、直径愈大、间距愈小,耐磨性愈好,摩擦系数愈大。(4)相同温度下的非光滑表面试样随温度升高耐磨性、摩擦系数下降。300℃以下波动较小,300℃以上波动增加。(5)在磨损过程中,单元体和基体表面分别与摩擦副相接触,这种过程往复进行,直到单元体被彻底磨没。更多还原

【Abstract】 The arrester is a key components of ensure brake performance and conveyance safe , by road construction change with each passing day, run speed of the car is gradual increasing . in the reason of conveyance tool high speed development ,now brake performance and use time of the arrester is not satisfy with high speed request of the car, accelerate manufacture be imperative under the situation which a new-style hjg life and high efficiency arrester material.Now third to second apply energy sources of the world which represent various friction damnify,this is have a great ecnomical meaning to extend use life of machine accessory, the world energy sources is about a half which one another friction that machine accessory of vary form consume . resultingly friction conduce wear is a mostly reason which machine equipment invalidation, in the develop industy nation , half of country economy total production value that use to change waster what which wear and similarity things. So many developed country active reaserch and apply of tribology.To friction arrest material say ,friction and wear are either mutuality or illogicality in the glide course ,it is need to a certainty friction resistance but it is not bring oversize abrasion , it is among problem which improve friction coefficent at the same time and improve arrester life . Organism configuration is by optimize in 20 a hundred million of almost leave nothing to be desired, we find that some of animals as dung beetle, pangolin, razor shell have non-smooth form but have good function that wearable, resist extrusion and resist crack. Accroding to character and composing of biology, we receive elicitation, and overpass analye reduce wear and wearable ect , we mastery and understand on base which model biology coupling rules, which through bionics manufacture, we hold that material更多还原