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工程陶瓷珩磨加工表面質(zhì)量
珩磨常用于內(nèi)孔表面的精加工,同時(shí)又是一種高效加工方法,可去除較大余量,適合加工相對(duì)運(yùn)動(dòng)精度高的精密偶件。隨著金剛石等超硬磨料的應(yīng)用,今后,對(duì)高性能陶瓷材料的珩磨加工將占有很大比重。珩磨加工是陶瓷發(fā)動(dòng)機(jī)氣缸(Mg-PSZ,TZP)、陶瓷泥沙泵缸體(ZTM,Al2O3) 以及陶瓷軸承套(HPSN,RBSN)等孔類零件機(jī)械加工的最佳選擇。
陶瓷材料的種類不同,其磨削加工表面粗糙度值存在差異,加工后陶瓷材料表面粗糙度值在一定程度上反映了材料的磨削加工性。陶瓷材料的珩磨加工具有同樣的規(guī)律工程陶瓷材料珩磨加工表面質(zhì)量的影響因素可分為兩類:珩磨工藝參數(shù)和珩磨工具參數(shù)。其中,工具參數(shù)的影響最為顯著。金剛石油石粒度對(duì)珩磨后陶瓷材料表面粗糙度有重要影響。工程陶瓷零件實(shí)際加工中,一般采用樹(shù)脂結(jié)合劑金剛石工具制品作為切削工具,為了獲得較高的磨削比和加工效率,通常選用金屬結(jié)合劑金剛石工具。
對(duì)于有配合精度要求的精密偶件,其最終加工表面質(zhì)量,在使用中顯得更為重要。以陶瓷材料在汽車、摩托車發(fā)動(dòng)機(jī)缸體等應(yīng)用為例,如果材料表面質(zhì)量差,就會(huì)發(fā)生表面磨損現(xiàn)象:陶瓷材料表面輪廓鋒利的凸峰或者切削與之配合的金屬部件或者陶瓷材料之間表面輪廓尖峰相互撞擊,最終導(dǎo)致部件配合尺寸超過(guò)公差范圍,配合精度下降,從而增加燃料的消耗。
陶瓷材料種類不同,其珩磨加工表面粗糙度值存在一定的差異。陶瓷材料的強(qiáng)度越低、脆性越高,其加工表面粗糙度值越大。陶瓷材料的珩磨加工還應(yīng)考慮材料的影響因素。
Types of ceramic materials is different, the honing processing surface roughness values exist certain differences. The strength of the ceramic material is lower, the higher the brittleness, the processing surface roughness values. Ceramic material of honing processing and the influence factors of materials should also be considered.
Types of ceramic materials is different, the honing processing surface roughness values exist certain differences. The strength of the ceramic material is lower, the higher the brittleness, the processing surface roughness values. Ceramic material of honing processing and the influence factors of materials should also be considered.
金剛石油石粒度、濃度以及結(jié)合劑三個(gè)珩磨工具參數(shù)中,油石粒度和油石結(jié)合劑對(duì)陶瓷材料珩磨加工表面粗糙度的影響作用較顯著。
Diamond abrasive grain size, concentration and binder in the three parameters of honing tools, abrasive particle size and abrasive binder for ceramic materials honing processing has obvious effect of surface roughness.
Diamond abrasive grain size, concentration and binder in the three parameters of honing tools, abrasive particle size and abrasive binder for ceramic materials honing processing has obvious effect of surface roughness.
工程陶瓷材料采用平頂珩磨加工方法,可去除材料表面輪廓中鋒利的凸峰,形成具有平頂特性的陶瓷材料表面,在實(shí)際應(yīng)用中避免發(fā)生配合面材料的磨損。
Engineering ceramic materials with flat-roofed honing processing method, can remove material surface contour sharp convex peak, in the form with flat top properties of the surface of the ceramic material, avoid mating surface materials in the practical application of wear and tear.
珩磨管廠家 http://fjdrnfz.cn 摘自網(wǎng)絡(luò)。
Engineering ceramic materials with flat-roofed honing processing method, can remove material surface contour sharp convex peak, in the form with flat top properties of the surface of the ceramic material, avoid mating surface materials in the practical application of wear and tear.
珩磨管廠家 http://fjdrnfz.cn 摘自網(wǎng)絡(luò)。