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精密冲压和普通冲压的区别在哪里

精密冲压和普通冲压的区别在哪里

发布日期:2017-07-11 作者:福(fu)磁(ci)电子 点击:

福磁电子——专业生产线圈、磁头及五金冲压件

冲(chong)(chong)压(ya)(ya)(ya)(ya)加(jia)(jia)工(gong)(gong)(gong)是借(jie)助(zhu)于(yu)常规(gui)或专(zhuan)用冲(chong)(chong)压(ya)(ya)(ya)(ya)设(she)备的(de)(de)动力(li),使板料在(zai)模(mo)具里直接受(shou)到变形力(li)并进行变形,从而(er)获得一定形状,尺寸和(he)性能的(de)(de)产品零件的(de)(de)生产技(ji)术。它是金属塑性加(jia)(jia)工(gong)(gong)(gong)(或压(ya)(ya)(ya)(ya)力(li)加(jia)(jia)工(gong)(gong)(gong))的(de)(de)主(zhu)要(yao)方法(fa)之一,冲(chong)(chong)压(ya)(ya)(ya)(ya)工(gong)(gong)(gong)艺与模(mo)具、冲(chong)(chong)压(ya)(ya)(ya)(ya)设(she)备、冲(chong)(chong)压(ya)(ya)(ya)(ya)油和(he)冲(chong)(chong)压(ya)(ya)(ya)(ya)材料构成(cheng)冲(chong)(chong)压(ya)(ya)(ya)(ya)加(jia)(jia)工(gong)(gong)(gong)的(de)(de)四(si)要(yao)素(su),只有它们相互(hu)结合才能得出质量可靠(kao)冲(chong)(chong)压(ya)(ya)(ya)(ya)件。与机械(xie)加(jia)(jia)工(gong)(gong)(gong)及塑性加(jia)(jia)工(gong)(gong)(gong)的(de)(de)其它方法(fa)相比,冲(chong)(chong)压(ya)(ya)(ya)(ya)加(jia)(jia)工(gong)(gong)(gong)无论在(zai)技(ji)术方面还是经济方面都具有许(xu)多独特的(de)(de)优点。主(zhu)要(yao)表现(xian)如下:

(1)冲压加工的(de)(de)生产(chan)效率高,且(qie)(qie)操作方便,易于实(shi)现机械化(hua)与自动化(hua)。这是因为冲压是依靠(kao)冲模和冲压设备来完成加工,普通压力机的(de)(de)行(xing)程次(ci)数(shu)为每分(fen)钟可(ke)达几(ji)十(shi)次(ci),高速压力要(yao)每分(fen)钟可(ke)达数(shu)百次(ci)甚至千次(ci)以上,而(er)且(qie)(qie)每次(ci)冲压行(xing)程就可(ke)能得到一个冲件。

(2) 冲(chong)(chong)压(ya)时(shi)由于(yu)模(mo)具保(bao)证(zheng)了冲(chong)(chong)压(ya)件的(de)尺(chi)寸与形(xing)状精度,且一(yi)(yi)般不破坏冲(chong)(chong)压(ya)件的(de)表面质量,而(er)模(mo)具的(de)寿命一(yi)(yi)般较长,所以冲(chong)(chong)压(ya)的(de)质量稳(wen)定,互换性好,具有“一(yi)(yi)模(mo)一(yi)(yi)样”的(de)特征。

(3) 冲压可加工出(chu)尺寸范围较(jiao)大、形(xing)状较(jiao)复(fu)杂(za)的零件,如小到(dao)(dao)钟表(biao)(biao)的秒(miao)表(biao)(biao),大到(dao)(dao)汽车纵梁、覆盖件等,加上冲压时(shi)材料的冷(leng)变形(xing)硬(ying)化效应(ying),冲压的强度和刚度均(jun)较(jiao)高。

(4) 冲压一般没有(you)切屑碎料生成(cheng),材料的(de)消耗较少,且不(bu)需其它加(jia)热(re)设备,因而是一种省料,节能(neng)的(de)加(jia)工(gong)方法(fa),冲压件的(de)成(cheng)本(ben)较低。

但是(shi),冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)加(jia)工(gong)所(suo)使用的(de)(de)模(mo)具(ju)一(yi)(yi)般(ban)具(ju)有专用性,有时(shi)一(yi)(yi)个(ge)复杂(za)零(ling)件需要数(shu)套模(mo)具(ju)才(cai)能加(jia)工(gong)成形(xing),且模(mo)具(ju)制造的(de)(de)精度高(gao),技术要求(qiu)高(gao),是(shi)技术密(mi)(mi)集形(xing)产(chan)品(pin)。所(suo)以只有在冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)件生产(chan)批量较大的(de)(de)情况(kuang)下,冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)加(jia)工(gong)的(de)(de)优点才(cai)能充(chong)分(fen)体现(xian),从而获得较好的(de)(de)经济效(xiao)益的(de)(de)。冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)加(jia)工(gong)可分(fen)为精密(mi)(mi)冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)和普通冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya),那么(me)什么(me)是(shi)精密(mi)(mi)冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)和普通冲(chong)(chong)(chong)(chong)压(ya)(ya)(ya)区别在哪(na)里:

(1)精密(mi)冲(chong)压(ya)(ya)是在普通(tong)冲(chong)压(ya)(ya)工(gong)(gong)艺(yi)的(de)(de)(de)基础(chu)上(shang)发展起(qi)来的(de)(de)(de)一(yi)种物料加(jia)工(gong)(gong)方法,它是通(tong)过提(ti)高导向精度,减小凸凹模间隙,增加(jia)反向压(ya)(ya)力和V形(xing)环(huan)压(ya)(ya)边圈等工(gong)(gong)艺(yi)措施,造成(cheng)在强烈(lie)的(de)(de)(de)三向压(ya)(ya)应力状态条件(jian)下,实现精密(mi)冲(chong)压(ya)(ya)或精密(mi)冲(chong)压(ya)(ya)与其他成(cheng)形(xing)工(gong)(gong)艺(yi)复合(he)的(de)(de)(de)工(gong)(gong)序,获得精密(mi)冲(chong)压(ya)(ya)件(jian)。

(2)精密(mi)冲(chong)压对冲(chong)压件精度要(yao)求(qiu)较(jiao)高(gao)在(zai)加工生(sheng)产过程中,冲(chong)压卷料(liao)或成(cheng)形,必须考虑合(he)适(shi)的精密(mi)冲(chong)床、模具、材料(liao)、冲(chong)压油等的技术配套,要(yao)求(qiu)较(jiao)高(gao)。

(3)普(pu)通冲(chong)压(ya)对(dui)冲(chong)压(ya)件(jian)精度要求(qiu)不(bu)(bu)大高,但也有其特定的市(shi)场(chang)需求(qiu),底材(cai)(cai)厚度较厚,不(bu)(bu)需要切(qie)、削、拉(la)伸等工艺(yi),冲(chong)压(ya)材(cai)(cai)料是板材(cai)(cai),管(guan)材(cai)(cai)等等,在(zai)产品单量要求(qiu)不(bu)(bu)大时,用(yong)普(pu)通冲(chong)压(ya)即可满足要求(qiu)了。

精(jing)密冲(chong)(chong)压(ya)和(he)普通冲(chong)(chong)压(ya)的不(bu)同之处就在于对冲(chong)(chong)压(ya)设(she)备的要(yao)求(qiu)和(he)所需(xu)冲(chong)(chong)压(ya)件(jian)的精(jing)度(du)高(gao)(gao)低。如果用(yong)(yong)户要(yao)求(qiu)冲(chong)(chong)压(ya)件(jian)精(jing)度(du)高(gao)(gao)、冲(chong)(chong)压(ya)件(jian)量大的时候(hou)可以选择采用(yong)(yong)精(jing)密冲(chong)(chong)压(ya),反之如果对冲(chong)(chong)压(ya)件(jian)精(jing)度(du)要(yao)求(qiu)不(bu)大高(gao)(gao),并且(qie)是(shi)由普通板料进行(xing)冲(chong)(chong)压(ya),选择普通冲(chong)(chong)压(ya)即可,这(zhei)需(xu)要(yao)客户根(gen)据自(zi)身的冲(chong)(chong)压(ya)特征(zheng)进行(xing)选择。



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关键词:精密冲压厂家,线圈公司,磁头厂家

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