High-Speed vs. High-Efficiency Milling yeAluminium Heat Sinks

Sezvo kudiwa kwepasirese kwepamusoro-kuita zvinopisa zvigadziriso zvinokura, vagadziriface pressure to optimizealuminium heat sinkproduction.Traditional high-speed milling inotonga indasitiri, asi nzira dziri kubuda dzepamusoro-soro dzinovimbisa budiriro yekubudirira. Ichi chidzidzo chinoverengera kutengeserana pakati peidzi nzira uchishandisa chaiyo-yepasi machining data, kugadzirisa gaka rakakosha mukutsvagisa kwakashandiswa kwemagetsi ekutonhodza zvikamu.

Methodology

1.Kuedza Dhizaini

●Workpiece:6061-T6 aruminiyamu zvidhinha (150×100×25 mm)

●Zvishandiso:6mm carbide end mills (3-nyere, ZrN-yakavharwa)

●Kudzora zvakasiyana-siyana:

HSM: 12,000-25,000 RPM, inogara chip mutoro

HEM: 8,000–15,000 RPM nekuita kwakasiyana (50–80%)

2. Kuunganidza Data

● Surface roughness: Mitutoyo SJ-410 profilometer (5 zviyero / workpiece)

● Kupfeka kwechishandiso: Keyence VHX-7000 digital microscope (flank kupfeka> 0.3mm = kukundikana)

● Chiyero chekugadzira: Kutenderera nguva yekutevera neSiemens 840D CNC logs

Mhinduro & Analysis

1.Surface Quality

● Nzira: HSM HEM

● Yakanyanya RPM: 18,000 12,000

●Ra (μm):0.4 0.7

HSM yepamusoro yekupedzisira (p<0.05) inopindirana neyakaderedzwa yakavakirwa-kumucheto kuumbwa pakumhanya kwakakwira.

2.Tool Life

● Zvishandiso zveHSM zvakundikana pa1,200 linear metres vs. HEM's 1,800 metres

● Adhesive kupfeka kwaitonga kukundikana kweHSM, nepo HEM yakaratidza maitiro abrasive

Kukurukurirana

1.Zvinoshanda Zvinoreva

●Nezve maapplication echokwadi:HSM inoramba iri yakanaka kunyangwe yakakwira maturusi mutengo

●Kugadzirwa kwepamusoro-vhoriyamu:HEM's 15% inokurumidza kutenderera nguva inoruramisa post-machining polishing

2.Kuganhurirwa

● Kusabatanidzwa 5-axis machining scenarios

● Kuedzwa kunogumira kune 6mm zvishandiso; madhayamita akakura anogona kuchinja mhedzisiro

Mhedziso

HSM inopa yepamusoro yepamusoro kupedzisa kwekutanga kupisa kunyura, nepo HEM ichipfuura mukugadzirwa kwakawanda. Tsvagiridzo yenguva yemberi inofanirwa kuongorora nzira dzakasanganiswa dzinobatanidza HSM yekupedzisa kupasa neHEM roughing.