Mndandanda: Chifukwa Chake Ma Drill Bits Amalephera | Nkhani 15
Mawu Ofunika: kuboola chitsulo chosapanga dzimbiri, chifukwa chake chitsulo chosapanga dzimbiri chimakhala chovuta kuboola, kulimbitsa ntchito yachitsulo chosapanga dzimbiri, kuboola pang'ono kwa chitsulo chosapanga dzimbiri 304 316, M35 cobalt HSS drill bit, chip chip breaking yachitsulo chosapanga dzimbiri, chitsulo chosapanga dzimbiri chomangidwa ndi chitsulo chosapanga dzimbiri, chitsulo chosapanga dzimbiri chogawanika 135, red hardness drill bit, work hardening drill failure, steel stainless steel drill RPM feed
Funsani aliyense amene waboolapo 304 kapena 316 stainless floor m'sitolo kuti vuto ndi chiyani, ndipo mudzapeza mawu omwewo musanamvetse sayansi: sticky. Choboolacho sichimangokaniza - chikuwoneka kuti chikuvuta kukankhira mukadali m'bowo kwa nthawi yayitali. Kufotokozera kumeneko ndi kolondola. Sikunathenso.
Chitsulo chosapanga dzimbiri sichovuta kuboola chifukwa ndi cholimba. Mu mkhalidwe wake wophimbidwa, mitundu yofanana monga 304 ndi 316 nthawi zambiri imakhala yofewa kuposa chitsulo cholimba. Chomwe chimapangitsa kuti chosapanga dzimbiri chikhale chosiyana ndichakuti kuboola kumayambitsa machitidwe anayi osiyana amakina nthawi imodzi, ndipo chilichonse chimapangitsa ena atatu kukhala oyipa kwambiri. Kumvetsetsa kuzungulira kumeneko - osati kungodziwa kuti "chopanda dzimbiri n'cholimba" - ndiko komwe kumasiyanitsa njira yoboola yomwe imagwira ntchito ndi yomwe imadya zidutswa.
Si Vuto la Kuuma
Ngati kuuma kokha ndiko kunayambitsa vutoli, chobowola cholimba chikanatha kuthetsa vutoli. M'malo mwake, masitolo ambiri amasinthira kukhala cholimba ndipo amapyolabe m'mabowo omwewo. Izi zili choncho chifukwa njira zinayi zomwe zili pansipa sizigwira ntchito imodzi panthawi imodzi - zimadyetsana mu chizunguliro, ndipo chizungulirocho ndi chomwe chimawononga chobowolacho.
● Kusagwira bwino ntchito komanso kusweka bwino kwa chip — zinthuzo sizimadulidwa bwino
● Kutentha kochepa — kutentha komwe kumachitika sikupita kulikonse
● Kulimbitsa ntchito — pamwamba pake pamavuta kwambiri pomwe mukuyesera kudula
● Kutentha kwambiri m'mphepete mwa chitsulo — chobowoleracho chimatenga chilango chomwe chogwirira ntchito sichingathe kunyamula
Chilichonse mwa izi ndi chodziwika bwino cha austenitic stainless chokha. Chomwe chimachitika kwa ogula akamalephera kugwiritsa ntchito ndi chomwe chimachitika pamene onse anayi akugwira ntchito nthawi imodzi.
Chifukwa Chake Zopanda Utsi Zimakhala "Zomata" - Kusinthasintha ndi Kusweka kwa Chip Kosauka
304 ndi 316 ndi zofewa kwambiri kuposa chitsulo cha kaboni, zomwe zikutanthauza kuti zinthuzo zimasinthasintha ndikufalikira patsogolo pa m'mphepete mwachitsulo m'malo moduladula kukhala chip chachifupi. Zotsatira zake zimakhala chip chachitali, chokhazikika, chozungulira m'malo mwa zidutswa zazing'ono zosweka zomwe mungapeze muchitsulo chopepuka.
Mafotokozedwe opanga zitsulo zosapanga dzimbiri amafotokoza mitundu ya austenitic m'mawu awa — monga "omwe amagwira ntchito molimbika kwambiri komanso osavuta kuswa ma chip" panthawi yopangira.
Chitsime: mabuku ambiri okhudza makina osapanga dzimbiri (chitsogozo chaukadaulo cha makampani opanga zinthu).
Zidutswa zazitali zozungulira sizimangooneka ngati zosokoneza. Zimazungulira thupi la chobowolera, zimayikidwa mu zitoliro, ndipo nthawi zina zimadzaza chidacho kwathunthu. Chitoliro chodzaza sichingathe kunyamula zidutswa - kapena kutentha - kuchokera m'bowo, zomwe zimakankhira vutoli molunjika ku gawo lotsatira.
Kutentha Komwe Kulibe Kopita
Mphamvu ya kutentha kwa chitsulo chosapanga dzimbiri ndi pafupifupi gawo limodzi mwa magawo atatu a chitsulo cha kaboni — nthawi zambiri imakhala pakati pa 15–30 W/m·K poyerekeza ndi 30–60 W/m·K pa chitsulo wamba cha kaboni. Mwachidule, izi zikutanthauza kuti kutentha komwe kumapangidwa kumapeto sikumafalikira mu workpiece yozungulira monga momwe kungachitire mu chitsulo chofatsa. Kumakhala kolunjika bwino komwe drill ikugwira ntchito kwambiri.
Kawirikawiri, kutentha pang'ono kumachoka ndi chip. Koma chip chomwe tangofotokoza kumene — chachitali, cholumikizidwa mu flute — sichikuchotsa dzenje bwino. Kutentha kochepa kumatuluka ndi chip, ndipo zomwe zatsala zimayamwa ndi chida ndi malo odulidwa kumene. Umenewo ndiye mgwirizano wachindunji pakati pa kuchotsa chip ndi kutentha kwa m'mphepete: si mavuto awiri osiyana, ndi vuto limodzi lodzipangira lokha.
Kulimbitsa Ntchito — Pamene Dzenje Likubwerera Mmbuyo
Kawirikawiri izi ndi zomwe zimapha chobowola, ndipo zimakhala chifukwa cha kutentha komwe kwafotokozedwa pamwambapa. Pamene m'mphepete mwa chobowola mukukukuta m'malo modula - chakudya chochepa kwambiri, liwiro lalikulu, kapena nthawi yozengereza pakati pa dzenje - kukangana ndi kukakamiza kumagwira ntchito mozizira - gawo lochepa la pamwamba. Gawo limenelo limalimba. Ngati silinapangidwe ndi zitsulo, dera lomwe lakhudzidwa limatha kufika pafupifupi 40–50 HRC, lolimba kuposa momwe chobowola chimapangidwira kudula.
Msampha: chipolopolocho chikayamba kugwira ntchito molimbika, chimakhala chovuta kwambiri kuchiluma pakapita nthawi, zomwe zimapangitsa kuti chikwiyike kwambiri, zomwe zimapangitsa kuti pamwamba pake pakhale polimba kwambiri. Chimadzilimbitsa chokha — ndipo chimayamba nthawi yomweyo chipolopolocho chikasiya kudula bwino.
Ichi ndichifukwa chake lamulo lokhazikika la malo ogulitsira zinthu zosapanga dzimbiri ndi lokwanira: musasiye kudya pamene spindle ikuzungulira. Kuyima pang'ono ngakhale kwa sekondi imodzi kapena ziwiri, ndi chidutswa chomwe chikuzungulirabe chikukhudzana ndi chinthucho, nthawi zambiri kumakhala kokwanira kulimbitsa malowo kuposa momwe bowolo lomwelo lingadulire pambuyo pake.
Momwe Zinthu Zinayi Zimagwirizanirana
Poyikidwa ngati unyolo, ndondomeko yolephera ikuwoneka motere:
Kumene Drill Bit Imabwera
Popeza zonsezi zili pamwambapa, n'kovuta kupeza chobowola "cholimba" ndikuganiza kuti vutoli lathetsedwa. Ndicho chimango cholakwika. Chifukwa chomwe M35 cobalt HSS imagwirira ntchito bwino kuposa M2 HSS yokhazikika mu chosapanga dzimbiri sichakuti M35 ndi yovuta kwambiri - koma ndichakuti M35 imasunga kuuma kwake ndi luso lake lodula kutentha kwambiri. M2 HSS imayamba kutaya kuuma kwake m'mphepete pa kutentha kwa 400°C; kuchuluka kwa cobalt mu M35 kumakankhira malire ofiirawo mpaka pafupifupi 600°C.
Popeza vuto lalikulu pakubowola kosapanga dzimbiri ndi kutentha komwe kulibe kopita, mtundu wa kubowola womwe umasunga bwino kwambiri kutentha kwakukulu ukukhudza njira yeniyeniyo - osati kungoletsa kuwonongeka kwathunthu. Ndondomekoyi ndi yoyenera kufotokozedwa momveka bwino:
Zosapanga dzimbiri zimapanga kutentha kokhazikika → kutentha kwapamwamba kumakwera → HSS yokhazikika imataya kuuma ndipo imachepa msanga → kukanda kosalala m'malo modula → kupukuta kumayendetsa ntchito kuuma → kutentha kwambiri → kulephera. M35 cobalt imasokoneza kuzungulira uku pa sitepe ya "m'mphepete imataya kuuma" - osati pa sitepe yolimbitsa ntchito, komanso osati pa sitepe ya RPM/feed.
Maonekedwe a mfundo ndi ofunika pachifukwa chomwecho, kuchokera mbali ina. Malo ogawanika a 135° (omwe ali mu gulu la Geometry la mndandanda uno) amachepetsa kutsetsereka ndi kuyenda kumayambiriro kwa dzenje, zomwe zimafupikitsa zenera pomwe chidutswacho chikukanda m'malo modula bwino. Kutsetsereka kochepa polowera kumatanthauza kuti palibe mwayi woyambitsa kuuma kwa ntchito dzenje lisanayambe.
Palibe chilichonse mwa izi chomwe chimalowa m'malo mwa njira yolondola. Choyimitsa bwino cha M35 cobalt chomwe chikuyenda pa RPM yolakwika, popanda kupanikizika kwa feed, kapena ndi mid-hole, chidzagwirabe ntchito yolimba ndipo chidzalephera - mochedwa pang'ono kuposa momwe choyimitsa cha HSS chingachitire. Choyimitsacho chimakweza denga; sichikonza magawo oipa pansi pake.
Kodi Izi Zikutanthauza Chiyani Mukamagwiritsa Ntchito Zobowola Zopangira Zopanda Zitsulo?
Ngati kuboola zitsulo zosapanga dzimbiri ndi gawo lobwerezabwereza la malonda anu kapena ntchito za makasitomala anu, mafunso angapo ndi ofunika kufunsa musanagule oda:
● Kodi mtundu wa cobalt wa M35 kapena M42 ndi wotsimikizika ndi kuchuluka kwa cobalt, osati chizindikiro cha "chitsulo chosapanga dzimbiri" chomwe chili pa paketi?
● Kodi mawonekedwe a mfundo akuphatikizapo mfundo yogawanika ya 135°, kapena mfundo yokhazikika ya 118° yopangidwira chitsulo chofatsa?
● Kodi ma RPM/feed values ofunikira a stainless stainless amaperekedwa kwa ogwiritsa ntchito, kapena amasiyidwa kuti aganizire?
● Kodi mafuta oziziritsira kapena odulira amaphatikizidwa mu ndondomeko yomwe ikulangizidwa, kapena amaganiziridwa mopanda chidwi?
Palibe funso lililonse mwa mafunso awa lomwe lili ndi yankho lolondola - limadalira mtundu wa zinthu zosapanga dzimbiri, kuya kwa dzenje, ndi zida. Koma wogulitsa amene angadziwe zambiri za izi nthawi zambiri amakhala wodziwa bwino momwe zinthu zilili kusiyana ndi amene amangopereka dzina lovuta kwambiri la chinthucho.
Zokhudza mndandanda uwu
Chifukwa Chake Drill Bits Fail ndi mndandanda waukadaulo wolembedwa ndi gulu lathu lopanga. Nkhani iliyonse imayang'ana kwambiri chinthu chimodzi chomwe chimagwira ntchito bwino pa drill bit - kuyambira pazinthu zopangira mpaka kulongedza. Cholinga chake ndi chosavuta: kuthandiza ogula kumvetsetsa zomwe akugula, komanso mafunso oti afunse.
Nthawi yotumizira: Sep-17-2026