High-Speed vs. High-Efficiency Milling for Aluminium Heat Sinks

Njengoba isidingo somhlaba wonke sezixazululo ezishisayo ezisebenza kahle sikhula, abakhiqizibhekana nengcindezi yokwandisai-aluminium heat sinkukukhiqiza.Ukugaya ngesivinini esiphezulu kwendabuko ibusa imboni, kodwa amasu avelayo asebenza kahle kakhulu athembisa izinzuzo zokukhiqiza. Lolu cwaningo lulinganisa ukuhwebelana phakathi kwalezi zindlela kusetshenziswa idatha yokwenza imishini yomhlaba wangempela, kubhekwane negebe elibalulekile ocwaningweni olusetshenziswayo lwezingxenye zokupholisa ze-elekthronikhi.

Indlela yokwenza

1.Idizayini Yokuhlola

●Umsebenzi:6061-T6 amabhulokhi e-aluminium (150×100×25 mm)

●Amathuluzi:Imishini yokuphela kwe-carbide engu-6mm (i-3-flute, i-ZrN-coated)

●Lawula okuguquguqukayo:

I-HSM: 12,000–25,000 RPM, umthwalo we-chip ongashintshi

I-HEM: 8,000–15,000 RPM ngokuzibandakanya okuguquguqukayo (50–80%)

2. Ukuqoqwa Kwedatha

●Ubukhulu bobuso: I-Mitutoyo SJ-410 profilometer (izilinganiso ezi-5/ucezu lokusebenza)

● Ukugqokwa kwamathuluzi: Isibonakhulu se-Keyence VHX-7000 (i-flank wear >0.3mm = ukwehluleka)

● Izinga lokukhiqiza: Ukulandelela isikhathi somjikelezo ngamalogi we-Siemens 840D CNC

Imiphumela & Ukuhlaziya

1.Ikhwalithi Yobuso

● Indlela: HSM HEM

● I-RPM ephelele: 18,000 12,000

●Ra (μm):0.4 0.7

Ukuqedwa okuphezulu kwe-HSM (p<0.05) ihlotshaniswa nokwakheka konqenqema oluncishisiwe ngesivinini esiphezulu.

2.Impilo Yethuluzi

● Amathuluzi e-HSM ahlulekile ku-1,200 wamamitha womugqa uma kuqhathaniswa namamitha angu-1,800 we-HEM

● Ukunamathela okunamathelayo kwabusa ukwehluleka kwe-HSM, kuyilapho i-HEM ibonise amaphethini abrasive

Ingxoxo

1.Imithelela Engokoqobo

●Ngezinhlelo zokusebenza ezinembayo:I-HSM isalokhu ikhethwa naphezu kwezindleko eziphezulu zamathuluzi

●Ukukhiqizwa kwevolumu ephezulu:Isikhathi somjikelezo esisheshayo esingu-15% se-HEM sithethelela ukupholishwa kwangemva komshini

2.Imikhawulo

● Kungabandakanyi izimo zomshini we-5-eksisi

● Ukuhlola kulinganiselwe kumathuluzi angu-6mm; amadayimitha amakhulu angase aguqule imiphumela

Isiphetho

I-HSM iletha isiphetho esiphezulu sokushisa osinki be-premium, kuyilapho i-HEM ihamba phambili ekukhiqizeni ngobuningi. Ucwaningo lwangomuso kufanele luhlole izindlela eziyingxubevange ezihlanganisa amaphasi okuqeda i-HSM ne-HEM roughing.