影響(xiang)激(ji)光打孔(kong)質(zhi)量(liang)的因素有(you)哪(na)壹些.為了獲得(de)更高(gao)質(zhi)量(liang)的孔(kong),所以(yi)應該(gai)根據(ju)激(ji)光打孔(kong)的壹(yi)般(ban)原(yuan)理跟(gen)特(te)點(dian),對(dui)影(ying)響(xiang)打孔(kong)質(zhi)量(liang)的參(can)數進(jin)行(xing)分析(xi)跟(gen)了解.這些參數壹般包括(kuo):激(ji)光脈(mai)沖(chong)的能(neng)量(liang),脈沖(chong)的寬度(du),離焦量(liang),脈沖(chong)激(ji)光的重(zhong)復(fu)頻(pin)率,加工材(cai)料的性質(zhi).

        而(er)激(ji)光切割機在(zai)打孔(kong)時(shi)打孔(kong)的尺(chi)寸(cun)和精(jing)度(du)比(bi)較(jiao)難(nan)控(kong)制(zhi),下面廣州華之尊(zun)能給(gei)大家(jia)分享(xiang)四(si)個(ge)要(yao)點(dian)需(xu)要(yao)掌(zhang)握(wo)控(kong)制(zhi)的,具體如下:

 

        第壹(yi),孔(kong)徑(jing)尺(chi)寸(cun)控(kong)制(zhi)

        激(ji)光切割機使(shi)用(yong)比(bi)較(jiao)小(xiao)的發(fa)散(san)角(jiao)的激(ji)光器(qi)(0.001~0.003rad),縮(suo)短焦距(ju)或降低(di)輸出能(neng)量(liang)可讓(rang)孔(kong)徑(jing)更小(xiao).對(dui)於(yu)熔(rong)點(dian)高(gao).導熱(re)性好的材(cai)料可實現(xian)孔(kong)徑(jing)0.01~1mm的微(wei)小(xiao)孔(kong)加工,最(zui)小孔(kong)徑(jing)可達(da)0.001mm.

 

        第二(er),孔(kong)的深(shen)度控(kong)制(zhi)

        提高(gao)激(ji)光器(qi)輸出能(neng)量(liang),采(cai)用合理的脈(mai)沖(chong)寬度(du)(材(cai)料和(he)導熱(re)性越好(hao),宜(yi)取越短的脈(mai)沖(chong)寬度(du)),應用基模(mo)模(mo)式(光強(qiang)呈高斯(si)分布(bu)的單(dan)模(mo))可獲得(de)大的孔(kong)深(shen).對(dui)於(yu)孔(kong)徑(jing)小的深(shen)孔(kong)宜用(yong)激(ji)光多(duo)次(ci)照(zhao)射,並用短焦距(ju)(15~30mm)的物(wu)鏡(jing)打孔(kong).

 

        第三(san),提高(gao)激(ji)光加工孔(kong)的圓(yuan)度(du)

        激(ji)光器(qi)模(mo)式采(cai)用基(ji)模(mo)加工,聚(ju)焦透鏡用(yong)消(xiao)球差(cha)物鏡,且透鏡光軸與(yu)激(ji)光束光軸重(zhong)合,工件適(shi)合偏(pian)離聚焦點(dian)以(yi)及(ji)選(xuan)擇適(shi)當(dang)的激(ji)光能(neng)量(liang)等可提高(gao)加工圓(yuan)度.

 

        第四(si),降(jiang)低(di)打孔(kong)的錐(zhui)度

        通常孔(kong)的錐(zhui)度隨(sui)其孔(kong)徑(jing)比(bi)增(zeng)大(da)而(er)增加,采(cai)用適(shi)當(dang)的激(ji)光輸出能(neng)量(liang)或小(xiao)能量(liang)多(duo)次(ci)照(zhao)射,較短的焦距(ju),小的透鏡折射率及減(jian)少(shao)入射光線(xian)與(yu)光軸間(jian)的夾角等(deng)措施(shi)可減(jian)小孔(kong)的錐(zhui)度.