
hye-speed steel

hye-speed steel (hcss ledhaa hchs) anedi tool steels yokka upasamiti, dheenini saadhaaranamgaa cutting tool materialga upayogistaaru.
idhi tarachugaa power-saa bladelu mariyu drill bits loe upayoginchabadutundi. idhi 1940laloe vistrutamgaa upayoginchina paatha adhika-carbon ukku saadhanaala kante merugainadi, idhi daani nigrahanni (kaatinyam) kolpokunda adhika ushnogratalanu thattukogaladu. eee lakshanam adhika carbon ukku kante vaegamgaa kattirinchadaaniki hcssnu anumatistundi, anduvalla dheeniki "hye-speed steel" anae paeru vachindi. gadhi ushnograta vadda, saadhaaranamgaa sifaarsu cheyabadina ushna chikitsalo, hcss gradelu saadhaaranamgaa adhika kaatinyam (rockwell kaatinyam 60 kante ekkuva) mariyu rapidi nirodhakatanu (saadhaaranamgaa hcslo tarachugaa upayoginche tungston mariyu venedium kantentto mudipadi untundi) saadhaarana carbon mariyu tool steels thoo poliste pradarsistaayi.
charitra.
1868loe aangla loha shaastravetta robbert forrester mushet aadhunika hye-speed steels kuu purvagaamigaa pariganinchabade mushet ukkunu abhivruddhi chesaaru. indulo 2 saatam carbon, 2.5 saatam manganese, 7 saatam tungston unnaayi. eee ukku yokka pradhana prayojanam emitante, chaalaa ukku gattipadataaniki challabarachaalsina ushnograta nundi gaali challabadinappudu adhi gattipadutundi. taruvaati 30 samvatsaraalalo, atyanta mukhyamaina maarpu manganese sthaanamlo chromiumnu marchadam.
1899 mariyu 1900loe, frederic winslo taylor mariyu mansel white ("neey" mansel white III; 1856-1912; mansel white manavadu; 1783-1863), bethleheim, pensylvania, us looni bethleheim steel companylo sahayakula brundamtho kalisi panicheestuu, mushet steel vanti ippatike unna adhika-naanhyata tool steelsnu vaedi chesi, vaatini parisramalo saadhaaranamgaa kavalsina daanikante chaalaa ekkuva ushnogratalaku vaedi chestu, aneka prayogaalu chesaaru. vaari prayogaalu shaastreeya anubhavavaadam dwara vargeekarinchabaddaayi, sampradaaya ghnaanam ledhaa rasavaada vantakaalanu parigananaloki teesukokunda, prati batch yokka vivaranaatmaka recordulanu unchi, aneka vibhina kalayikalanu tayaaru chesi pareekshinchaaru. phalitamgaa, ippatike unna mishrama mishramaalanu adhika ushnogratala vadda daani kaatinyaanni nilupukogala kotta rakamaina ukkugaa marchina ushna chikitsa prakriya, idhi yantram chesetappudu chaalaa ekkuva vegaanni mariyu kotha retunu anumatistundi.
taylor-white prakriya patent cheyabadindi mariyu yantra parisramalalo viplavanni srushtinchindi. kotta ukkunu daani puurti prayojanaaniki upayoginchadaaniki adhika drudhatvam kaligina bhaarii yantra parikaraalu avasaramayyayi, idhi punahroopakalpana mariyu vyavasthaapinchina karmagara yantraalanu bharti cheyadaaniki prerepinchindi. petentnu vyatiraekimchaaru mariyu chivariki raddu chesaaru.
adhikarikamga hye-speed steelga vargeekarinchabadina modati misramaanni 1910loe pravesapettina ic hodha tii1 anie pilustaaru. dheeniki crucible steel koo patent pondindi. 20va sataabdam praarambhamlo.
ic emm1 vanti malibdinum-samruddhiga unde hye-speed steels 1930la nundi kontha upayogaanni chusinappatiki, rendava prapancha yuddham kaaranamgaa erpadina padaarthaala korata mariyu adhika kharchulu tungston kosam malibdinum sthaanamlo takkuva khareedaina mishramaala abhivruddhini prothsahinchaayi. eee kaalamlo malibdinum aadhaarita adhika vaega ukku purogati vaatini tungston aadhaarita adhika vaega ukku kante samanamga, konni sandarbhaallo merugga unchutundi. idhi tii1 ukkuku badulugaa emm2 ukkunu upayoginchadamto praarambhamaindi.
rakalu.
adhika vegapu ukku anevi carbon steelku jodinchina vividha rakaala mishrama lohala nundi, saadhaaranamgaa tungston mariyu malibdinum ledhaa rendinti kalayikatho sahaa, tarachugaa itara misramaalato kooda vaati lakshanaalanu pondhe mishrama lohaalu. avi phe-sii-ex bahula-bhagala mishrama vyavasthaku chendinavi, ikkada x chromium, tungston, malibdinum, venedium ledhaa koobaaltnu suuchistumdi. saadhaaranamgaa, x bhaagam 7 saataaniki paiga untundi, alaage 0.60% kante ekkuva carbon untundi.
ekikruta sankhya vyavasthalo (yuu. ess), tungston-rakam shrenulu (ii.zii. t1, t15) luu t120xx shrenilo ketayinchabadina sankhyalu, ayithe malibdinum (e.zii. m2, m48) mariyu madhyantara rakalu t113xx. astm pramaanaalu 7 tungston rakalu mariyu 17 malibdinum rakalanu gurtistaayi.
mottam meeda sumaru 10 saatam tungston mariyu malibdinamlanu jodinchadam valla adhika vegam gala ukku yokka kaatinyam mariyu drudhatvam samarthavantamgaa perugutundi mariyu lohalanu kattirinchetappudu utpatti ayye adhika ushnogratala vadda aaa lakshanaalanu nirvahistundi.
malibdinum hye speed steels (hcss).
malibdinum, tungston mariyu chromium ukkunu kalapadam valla saadhaaranamgaa "hcss" anie piluvabade aneka mishrama mishramaalanu srushtistundi, idhi 63-65 rockwell "sii" kaatinyaanni kolustundi.
cobalt hye speed steels (hcss).
cobalt jodinchadam valla ushna nirodhakata perugutundi, mariyu 70 nimishala varaku rockwell kaatinyaanni istundi.
uparitala maarpu.
laejarlu mariyu electron kiranaalanu ushna chikitsa, remelting (glazing) mariyu kuurpu savarana kosam uparitalam vadda teevramaina ushna vanarulugaa upayoginchavacchu. vividha karigina kolanu akaaraalu mariyu ushnogratalato paatu 103 nundi 106 ks−1 varaku sheetaleekarana retlanu saadhinchadam saadhyamavutundi. prayojanakaramgaa, pagullu ledhaa sachchidrata erpadatam takkuvagaa ledhaa undadu.
uparitalam vadda ushna chikitsa yokka avakaasaalu takshaname spashtamgaa kanipinchaali, itara anuvartanaalu kontha vivarananu korutayi. 106 ks-1 kante ekkuva sheetaleekarana raetla vadda eutectic microconstituentl adrusyamavutaayi mariyu substitutional alloying elements yokka teevramaina vibhajana untundi. idhi sambandhita runn-inn ware nashtam lekunda merustunna bhaagam yokka prayojanaalanu andinche prabhavanni kaligi untundi.
oka bhaagam ledhaa sadhanam yokka mishrama kuurpunu sannani misramam yokka uparitalampai adhika vegavantamaina ukkunu roopondinchadaaniki ledhaa adhika vegavantamaina ukku bhaagam yokka uparitalampai misramam ledhaa carbide susampannamaina poranu roopondinchadaaniki kooda maarchavacchu. reku, pyaak boronizing, plasma spray pouderlu, pouder coord strips, jada gyaas bloe feedarlu modalaina aneka paddhatulanu upayoginchavacchu. eee paddhati prayojanakaramainadi mariyu sthiramainadi anie nivedinchabadinappatiki, idhi inca vistrutamaina vaanijya upayogam chudaledu.
erpaatu.
rolling dwara erpadina hcss drill bitsnu hcss-aarr anie suuchistaaru. hcss-zii, cobalt mariyu carbide drill bitsnu roopondinchadaaniki grounding upayoginchabadutundi.
applications.
hye-speed steels yokka pradhana upayogam vividha cutting tools tayaareeloo konasagutondihi drills, taps, milling cutters, tool bits, hobbing (gair) cutters, saa bladelu, planner mariyu jointer bladelu, router bits modalainavi.ayinappatikee, guddadam mariyu champadam kosam vadakam perugutondi.
adhika vegavantamaina ukku fine hanned toolslo kooda oka marketnu kanugondi, ikkada adhika kaatinyam vadda vaati saapekshamgaa manchi drudhatvam, adhika rapidi nirodhakathatho kalisi, faillu, uli, chethi vimaana bladelu mariyu damascus vantagadi kattulu mariyu paaket kattulu vanti mannikaina (padunaina) anchu avasaramayye takkuva vaega anuvartanaalaku anukuulamgaa undela chesindi.
chekka tippadamlo upayoginchadaaniki adhika vegavantamaina ukku panimutlu atyanta prachuryam pondaayi, endukante anchu daati pani yokka kadalika vegam handheld tools kosam saapekshamgaa ekkuvagaa untundi, mariyu hcss adhika carbon ukku panimutla kante chaalaa ekkuva kaalam daani anchunu kaligi untundi.
cast iron cutting kosam alaage cnc yantraalalo hye speed steelnu upayogistaaru.

