Tsela ea ho khetha karo-karolelano ea forging?

Ha karo-karolelano ea ho forging e ntse e eketseha, li-pores tsa ka hare lia hatelloa 'me li-dendrite tsa as-cast lia robeha, e leng se etsang hore ho be le ntlafatso e kholo ea thepa ea mochine oa longitudinal le oa transverse oa mochine.Empa ha elongation forging karolo karo-karolelano e kholo ho feta 3-4, e le forging karolo karo-karolelano e ntse e eketseha, e totobetseng faeba meaho e thehoa, e leng ho etsa hore ho fokotseha ho matla ka polasetiki index ea thepa transverse mechine, e isang ho anisotropy ea forging.Haeba tekanyo ea karolo ea forging e le nyane haholo, forging e ke ke ea finyella litlhoko tsa ts'ebetso.Haeba e le kholo haholo, e eketsa mosebetsi oa forging hape e baka anisotropy.Ka hona, ho khetha tekanyo e nepahetseng ea ho qhekella ke taba ea bohlokoa, 'me taba ea ho se lekane ha deformation nakong ea forging le eona e lokela ho nkoa.

Karolelano ea forging hangata e lekantsoe ka tekanyo ea deformation nakong ea bolelele.E bua ka karo-karolelano ea bolelele le bophara ba thepa e lokelang ho etsoa, ​​​​kapa karo-karolelano ea sebaka sa sefapano sa thepa e tala (kapa billet e entsoeng esale pele) pele e qhekella sebakeng sa sefapano sa sehlahisoa se phethiloeng ka mor'a ho forging.Boholo ba karo-karolelano ea ho forging bo ama thepa ea mochini ea litšepe le boleng ba forgings.Ho eketsa tekanyo ea ho qhekella ho molemo bakeng sa ho ntlafatsa microstructure le thepa ea tšepe, empa litekanyo tse feteletseng tsa ho qhekella le tsona ha li na molemo.

Molao-motheo oa ho khetha karo-karolelano ea forging ke ho khetha e nyane ka hohle kamoo ho ka khonehang ha o ntse o netefatsa litlhoko tse fapaneng tsa forgings.Karolelano ea forging hangata e khethoa ho latela maemo a latelang:

1. Ha tšepe ea boleng bo phahameng ba k'habone le tšepe ea sebopeho sa motsoako li entsoe ka bolokolohi holim'a hamore: bakeng sa mofuta oa shaft forgings, li entsoe ka kotloloho ho tsoa ho li-ingots tsa tšepe, 'me karolelano ea ho qhekella e baloang ho latela karolo e kholo e lokela ho ba ≥ 3;Karolelano ea forging e baloang ho latela li-flange kapa likarolo tse ling tse hlahelletseng e lokela ho ba ≥ 1.75;Ha u sebelisa li-billet tsa tšepe kapa thepa e rokotsoeng, karolelano ea ho forging e baloang ho latela karolo e kholo ke ≥ 1.5;Karolelano ea forging e baloang ho latela li-flange kapa likarolo tse ling tse hlahelletseng e lokela ho ba ≥ 1.3.Bakeng sa li-ring forgings, karo-karolelano ea ho forging e lokela ho ba ka kakaretso ≥ 3. Bakeng sa li-disc forgings, li entsoe ka ho toba ho tloha ho li-ingots tsa tšepe, tse nang le tekanyo e ferekanyang ea ≥ 3;Maemong a mang, karo-karolelano e ferekanyang e lokela ho ba>> 3, empa ts'ebetso ea ho qetela e lokela ho ba>.

2. Lesela le phahameng la tšepe ea alloy billet ha le hloke feela ho felisa mefokolo ea eona ea sebopeho, empa hape le hloka ho ba le kabo e tšoanang ea li-carbides, kahoo ho tlameha ho amoheloa tekanyo e kholoanyane ea forging.Karo-karolelano ea tšepe ea tšepe e sa hloekang e ka khethoa e le 4-6, ha tekanyo ea tšepe ea tšepe e phahameng e lokela ho ba 5-12.