Zaɓin ɗaure da abrasive yana da alaƙa da alaƙa. Misali, amfani da CBN gabaɗaya yana buƙatar injin niƙa don kiyaye siffarsa ba canzawa yayin amfani da shi kuma kada a cire shi daga injin ɗin har sai an cinye shi gaba ɗaya. Da yake yanayin zafi na CBN yana da kyau sosai, yana da fa'ida don amfani da haɗin ƙarfe. Haɗin haɗin biyu yana ba da yanayin yanke sanyi. Domin yankan zafi yana daukar kwayar cutar ta hanyar abrasive daniƙadabaran, sa'an nan kuma ɗauke shi da coolant, yana da sauri fiye da shigar da workpiece.
Akwai nau'i biyu na haɗin ƙarfe: electroplating da sintering.Electroplated nikaƙafafun ba a gyara su, an yi su zuwa daidaitattun su a farkon kuma ana amfani da su har sai sun ƙare. Ƙaƙƙarfan ƙafafun niƙa yawanci ana gyara su ta hanyar tartsatsin lantarki, sannan a sanya su akan kayan aikin injin kamar ƙafafun niƙa na lantarki. Radial runout na sintered da electroplated ƙafafun niƙa da aka sanya a kan sandal zai zama ƙasa da 0.0125mm. Domin karfe bonded ƙafafun nika, yana da matukar muhimmanci a rage spindle runout.
Domin nisan da hatsin da ke fitowa daga haɗin gwiwa yana da ƙanƙanta, idan gudu ya kai 0.025mm, ɗaya ƙarshen ƙarshen.niƙadabaran za ta yi yawa fiye da kima, yana haifar da lalacewa da yawa, kuma ɗayan ƙarshen za a yi lodi da sauƙi kuma har yanzu yana da kaifi. Wasu ƙafafun niƙa na lantarki suna iya samar da ƙananan radius na kwane-kwane (kimanin 0.125mm). Koyaya, radius na baka na mafi yawan ƙafafun niƙa na lantarki ya fi 0.5mm girma. Gabaɗaya, ana amfani da ƙafafun niƙa na lantarki don niƙa mai sauri, yayin da ƙafafun niƙan ƙarfe na ƙarfe sun dace da niƙa kayan yumbu.
Monolithic karfe bondeddabaran niƙayana da ƙaramin kewayon daidaitawa zuwa rawar jiki, runout, kwarara mai sanyaya da sauran yanayin aiki. Idan rigidity na injin niƙa, kayan aiki da kayan aiki ba su da kyau, ko kuma ɗaukar kayan aikin na'urar ba ta da kyau, kuma babu na'urar daidaitawa akan kayan injin, amfani da dabaran niƙa na lantarki a ƙarƙashin wannan yanayin zai haifar da hakan. matsaloli a cikin sabis rayuwa na nika dabaran, workpiece gama da surface texture. Dangane da rawar jiki da kwanciyar hankali na kayan aikin injin da sauran takamaiman yanayi, wani lokacin yana da kyau a yi amfani da ƙafafun niƙa na guduro.
Resin bond yana da ƙarfin damping mai ƙarfi zuwa girgiza. Hakika, da kayan aiki da kuma lokacin da hannu a cikin gyara da miya na guduro bonded ƙafafun nika zai kara kudin. An fi amfani da yumbu bond. Saboda dabaran niƙa da aka haɗa tana da ramuka, ruwan yankan zai iya shiga cikin baka mai niƙa yadda ya kamata, kuma akwai manyan ramuka don riƙe tarkacen lalacewa. A lokaci guda, yumbu bonded dabaran nika za a iya sauƙi datsa zuwa daidai siffar da kuma kaifafa ta amfani da lu'u-lu'u kayan aikin.
Lokacin aikawa: Janairu-16-2023