Kodi HSS Twist Drill Bit ndi chiyani?
HSS twist drill ndi mtundu wa chida chobowolera chopangidwa ndi chitsulo chothamanga kwambiri chomwe chimagwiritsidwa ntchito pokonza zitsulo. HSS ndi chitsulo chapadera cha alloy chomwe chimalimbana bwino ndi kusweka, kukhazikika kwa kutentha, komanso mawonekedwe odulira, zomwe zimapangitsa kuti chikhale choyenera ntchito zopangira zitsulo monga kubowola. Chobowolera chopindika (chomwe chimadziwikanso kuti auger kapena spiral flute drill) ndi chobowolera chokhala ndi zitoliro za helical zomwe zimalola kudula zipilala kutuluka mwachangu mu dzenje lobowola, kuchepetsa kukangana ndi kutentha pakubowola ndikuwonjezera magwiridwe antchito obowola. Kapangidwe ka zobowolera zopindika za HSS zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zipangizo zosiyanasiyana zachitsulo, kuphatikizapo chitsulo, aluminiyamu, mkuwa ndi alloys, ndi zina zotero komanso makina a matabwa.
Makhalidwe a Ma Drill Opotoka a Zitsulo Othamanga Kwambiri
1. Kukana Kukwawa Kwambiri: Zipangizo zachitsulo zothamanga kwambiri zimakhala ndi kukana kwabwino kwambiri kwa kukwawa, zomwe zimathandiza kuti m'mbali mwake mukhalebe wakuthwa kwa nthawi yayitali.
2. Kukhazikika kwa Kutentha Kwambiri: Chitsulo chothamanga kwambiri chingathe kugwira ntchito m'malo otentha kwambiri popanda kutayika kwakukulu kwa kuuma kapena kusintha.
3. Kudula Bwino Kwambiri: Kapangidwe ka mizera yozungulira ya zobowolera zopindika kamathandizira kudula bwino zitsulo pomwe zimachepetsa kuchulukana kwa ma chip.
4. Ubwino Wodalirika wa Machining: Mabowo opindika achitsulo othamanga kwambiri nthawi zambiri amapereka mabowo obowoledwa bwino okhala ndi miyeso yolondola komanso malo osalala.
Mitundu ya HSS Yomwe Timagwiritsa Ntchito Pa Ma Twist Drills Athu
Magiredi akuluakulu a HSS omwe timagwiritsa ntchito ndi awa: M42, M35, M2, 4341, 4241.
Pali kusiyana pakati pawo, makamaka chifukwa cha kapangidwe kake ka mankhwala, kuuma kwake, kukhazikika kwa kutentha kwake, ndi madera omwe amagwiritsidwa ntchito. Nazi kusiyana kwakukulu pakati pa ma HSS grade awa:
1. M42 HSS:
M42 ili ndi 7%-8% cobalt (Co), 8% molybdenum (Mo) ndi ma alloy ena. Izi zimapangitsa kuti ikhale yolimba komanso yolimba. M42 nthawi zambiri imakhala yolimba kwambiri, ndipo kulimba kwake kwa rockwell ndi 67.5-70 (HRC) komwe kungapezeke pogwiritsa ntchito njira zochizira kutentha.
2. M35 HSS:
M35 ili ndi 4.5%-5% ya cobalt ndipo ilinso ndi kukana kwakukulu kwa kukwawa komanso kukhazikika kwa kutentha. M35 ndi yolimba pang'ono kuposa HSS yachizolowezi ndipo nthawi zambiri imakhala ndi kuuma kwapakati pa 64.5 ndi 67.59(HRC). M35 ndi yoyenera kudula zinthu zomata monga chitsulo chosapanga dzimbiri.
3. M2 HSS:
M2 ili ndi tungsten (W) yambiri ndi molybdenum (Mo) ndipo ili ndi mphamvu zabwino zodulira. Kulimba kwa M2 nthawi zambiri kumakhala pakati pa 63.5-67 (HRC), ndipo ndi yoyenera kupangira zitsulo zomwe zimafunikira zofunikira kwambiri.
4. 4341 HSS:
4341 HSS ndi chitsulo chothamanga kwambiri chomwe chili ndi aloyi wochepa pang'ono poyerekeza ndi m2. Kulimba kwake nthawi zambiri kumakhala pamwamba pa 63 HRC ndipo ndikoyenera ntchito zonse zachitsulo.
5. 4241 HSS:
4241 HSS ndi HSS yopangidwa ndi aloyi yochepa yokhala ndi zinthu zochepa zosakaniza. Kulimba kwake nthawi zambiri kumakhala pafupifupi 59-63 HRC ndipo nthawi zambiri kumagwiritsidwa ntchito pobowola zitsulo ndi kubowola.
Kusankha mtundu woyenera wa HSS kumadalira zosowa zanu komanso mtundu wa zinthu zomwe mukufuna kuzigwiritsa ntchito. Kulimba, kukana kukwawa komanso kukhazikika kwa kutentha ndi zinthu zofunika kwambiri pakusankha.
Nthawi yotumizira: Sep-18-2023