Kusarudza Iyo Inoshungurudza Kureba-kune-Diamita Ratio muForging

Mukuita kuumba , upsetting inoreva deformation ye workpiece kuti iwedzere dhayamita nekutsikirira kureba kwayo. Iyo yakakosha parameter mukugumburisa ndeyeurefu-kusvika-dhayamita reshiyo (H/D reshiyo), iyo inoita basa rinokosha pakusarudza kunaka kwechigadzirwa chekupedzisira uye kukwanisa kwekuita. Iyo kureba-kusvika-dhayamita reshiyo inoshandiswa kuve nechokwadi kuti deformation inoramba ichidzorwa uye yunifomu, kudzivirira nyaya dzakaita sebuckling, kuputika, kana kutadza kwezvinhu.

Chii chinonzi Height-to-Diameter Ratio?

Hurefu-kusvika-dhayamita reshiyo (H/D reshiyo) ireshiyo pakati pehurefu (kana kureba) hwechishandiso uye dhayamita rayo risati ragadzira. Chiyero ichi chinobatsira kutsanangura kuti yakawanda sei chinhu chinogona kukanganiswa kuburikidza nekugumburisa maitiro. Kazhinji, iyo diki reshiyo, zvinonyanya kuitika maitiro ekugumburisa anove nekuti zvipfupi, zvakakora zvinhu zvinokwanisa kumirisana nemasimba makuru ekumanikidza pasina kuputika kana kukonzeresa.

Semuenzaniso, yakaderera H / D reshiyo, senge 1.5: 1 kana yakaderera, inoratidza stubby workpiece, iyo inogona kubata yakakwira yekumanikidza mitoro isina njodzi huru yekusagadzikana. Nekune rimwe divi, chiyero chepamusoro, senge 3: 1 kana kupfuura, chinoda kunyatsotariswa, sezvo workpiece inova yakanyanya kukonzeresa deformation.

Nzira yekuona sei Yakanyanya H/D Ratio?

Iyo yakanakira H / D reshiyo inotsamira pane akati wandei zvinhu, zvinosanganisira zvinhu zvemukati, tembiricha yechinhu panguva yekugadzira, uye dhigirii re deformation inodiwa. Heano matanho makuru ekuona iyo yakakwana H / D reshiyo yekugumburisa:

1. Material Properties: Zvishandiso zvakasiyana zvinoratidzira zvakasiyana compressive simba uye ductility. Zvinhu zvakapfava, senge aruminiyamu, zvinogona kushingirira deformation isina kutsemuka, nepo zvinhu zvakaomarara senge high-carbon simbi zvingada yakaderera H / D reshiyo kudzivirira kushushikana kwakanyanya. Kuyerera kushushikana kwezvinhu, kureva, kushushikana kunodiwa kuti urambe uchikanganisa zvinhu zvepurasitiki, kunofanirwa kutariswa.
2. Tembiricha Mamiriro: Hot forging inowanzoitwa patembiricha inovandudza zvinhu ductility uye kuderedza simba rinodiwa. Kupisa kwepamusoro kunobvumira deformation yakakura, iyo inobvumira kureba kukuru-kusvika-dhayamita. Kune kutonhora kwekugadzira, chiyero cheH / D chinofanirwa kuchengetwa chidiki nekuda kwekuwedzera kwengozi yekuoma kwebasa uye kuputika.
3. Dhigirii reDeformation: Huwandu hwe deformation hunodiwa ndechimwe chinhu chakakosha. Kana kuderedzwa kwakakosha kwehurefu kuchidikanwa, kutanga nereshiyo yakaderera yeH / D kunobatsira kuve nechokwadi chekuti workpiece inogona kuita kudzvanywa kunodiwa pasina kukanganisa.
4. Kunzvenga Zvikanganiso: Paunenge uchitarisa H / D reshiyo, zvakakosha kuti udzivise kuremara kwakadai sebuckling, izvo zvinoitika kana zvinhu zvapeta kana kuunyana panguva yekumanikidza. Kuti udzivise kuputika, mutemo wakajairwa wechigunwe kushandisa chiyero chekutanga cheH/D isingasviki 2:1 pakugadzira kugumbuka. Pamusoro pezvo, lubrication uye dhizaini yakakodzera yekufa kwakakosha kudzikisa kukweshera uye kuve nechokwadi chekuchinja kwakafanana.

Muenzaniso Unoshanda

Funga nezvenyaya yekugumbura cylindrical billet yesimbi. Kana iyo yekutanga kureba kwebillet iri 200 mm uye dhayamita iri 100 mm, chiyero cheH / D chingave 2: 1. Kana zvinhu zvacho zvakapfava, uye kupisa kunopisa kuchishandiswa, chiyero ichi chinogona kugamuchirwa. Nekudaro, kana kutonhora kwekugadzira kuchishandiswa, kudzikisa hurefu kuti udzikise H / D reshiyo kungave kuri madikanwa kudzivirira kuputika kana kuputika panguva yekugumburisa.

Mhedziso

Hurefu-kusvika-dhayamita reshiyo mukugumburisa chinhu chakakosha chekugadzira chinotaridza kubudirira kwemaitiro. Nekunyatso ongorora zvivakwa zvezvinhu, tembiricha, uye deformation zvinodiwa, muyero wakakwana unogona kugadzwa, kuve nechokwadi chekugadzirwa kwemhando yepamusoro, isina hurema-isina akaumbwa zvikamu.