Improved of manufacturing process of "eye-bolt" forgings by twin die-forging with prior profiling of billets by buckling
Abstract
The possibility of using the buckling as economical method of billets profiling for provide of replacement of pinch and pre-rolled impressions before die-forging of eye-bolt forgings is shown. To implement of this method of without dies profiling of billets the technology of twin die-forging of eye-bolt forgings is proposed and of die-tool layout is designed. It is found that the semi-finished product acquires the desired profiled shape at degree of upsetting of work-piece is 39 %, while the central angle between the twin forgings of eye-bolts be a 54º, that considered in the design of the die-tool. The experienced die-forging technique of eye-bolts forgings by the basic and new technology were executed on lead physical models of billets, at has been found that the proposed technological solution is provided the saves of metal at 21,7 %. The comparison of results of die-forging of forgings in two variants revealed increasing of indexes of technical and economic performance of the new technology, namely, the coefficient of flow rate of metal while cutting – by 1,4 %, the coefficient of yield forgings – by 21,1 %, the utilization coefficient of metal forgings for application rate – 27,9 %.References
1. Proizvodstvo rym boltov, Url: // www.litshtamp-po.ru/spravochnik/52-detali-mashin-i-mahanizmov/ 193-rim-bolti
2. Orlov P.I. Osnovy konstruirovaniya, Spravochno-metodicheskoe posobie, V 3-kh knigakh, Kn. 2, Iz-danie 2-e, M., Mashinostroenie, 1977, 574 p.
3. Gruzopodemnost rym boltov, Url: // coroma.ru/stati/gruzopodemnost-rym-boltov.htm
4. Anurev V.I. Spravochnik konstruktora mashinostroitelya, Izdanie 4-e, Pererabotannoe i dopolnennoe, Kniga 1, M., Mashinostroenie, 1974, 416 p.
5. Stokes J.B. Agricultural engineering in development: intermediate blacksmithing: a training manual, Rome, Food & Agriculture Org., 1992, Agricultural services bulletin, 88/2, 61 p.
6. Babenko V.A., Bryukhanov A.N., Vladimirov M.F. i dr. Tekhnologicheskij spravochnik po kovke i obemnoj shtampovke, Pod red. M.V. Storozheva, M., Mashgiz, 1959, 969 p.
7. Golovneva M.A., Atroshenko A.P. Oborudovanie i tekhnologiya goryachej shtampovki, M., Mashgiz, 1962, 368 p.
8. Nagrev zagotovok ikh kovka i shtampovka (Chast 10), Url: // http://metallicheckiy-portal.ru /articles/obrabotka/shtampovka/texnol_soxr_metalla_pri_stampovke/nagrev _zagotovok_kovka_shampovka/11
9. Eduardov M.S. Shtampovka v zakrytykh shtampakh, Mashinostroenie, 1971, 240 p.
10. Krymskij I.I. Goryachaya shtampovka tekhnologiya i oborudovanie, M., Trudrezervizdat, 1958, 254 p.
11. Omelchenko P.P., Kargin B.S. Proektuvannya kovalsko-shtampuvalnikh tsekhiv, Mariupol, PDTU, 2000, 178 p.
12. Kukhar V.V. Metodika ucheta smyatiya tortsevykh uchastkov zagotovok pri proektirovanii tekhnologij na osnove prodolnogo izgiba, Obrabotka materialov davleniem, Sb. nauch. tr., Kramatorsk, DGMA, 2012, N 4 (33), pp. 91-94.
13. Kukhar V.V. Formoizmenenie pri profilirovanii prodolnym izgibom zagotovok s razlichnoj formoj poperechnogo secheniya, Visnik Natsionalnogo Tekhnichnogo Universitetu Ukrainy ‘Kievskij politekhnichnij institut’, Seriya “Mashinobuduvannya”, N 60, pp. 169-173.
2. Orlov P.I. Osnovy konstruirovaniya, Spravochno-metodicheskoe posobie, V 3-kh knigakh, Kn. 2, Iz-danie 2-e, M., Mashinostroenie, 1977, 574 p.
3. Gruzopodemnost rym boltov, Url: // coroma.ru/stati/gruzopodemnost-rym-boltov.htm
4. Anurev V.I. Spravochnik konstruktora mashinostroitelya, Izdanie 4-e, Pererabotannoe i dopolnennoe, Kniga 1, M., Mashinostroenie, 1974, 416 p.
5. Stokes J.B. Agricultural engineering in development: intermediate blacksmithing: a training manual, Rome, Food & Agriculture Org., 1992, Agricultural services bulletin, 88/2, 61 p.
6. Babenko V.A., Bryukhanov A.N., Vladimirov M.F. i dr. Tekhnologicheskij spravochnik po kovke i obemnoj shtampovke, Pod red. M.V. Storozheva, M., Mashgiz, 1959, 969 p.
7. Golovneva M.A., Atroshenko A.P. Oborudovanie i tekhnologiya goryachej shtampovki, M., Mashgiz, 1962, 368 p.
8. Nagrev zagotovok ikh kovka i shtampovka (Chast 10), Url: // http://metallicheckiy-portal.ru /articles/obrabotka/shtampovka/texnol_soxr_metalla_pri_stampovke/nagrev _zagotovok_kovka_shampovka/11
9. Eduardov M.S. Shtampovka v zakrytykh shtampakh, Mashinostroenie, 1971, 240 p.
10. Krymskij I.I. Goryachaya shtampovka tekhnologiya i oborudovanie, M., Trudrezervizdat, 1958, 254 p.
11. Omelchenko P.P., Kargin B.S. Proektuvannya kovalsko-shtampuvalnikh tsekhiv, Mariupol, PDTU, 2000, 178 p.
12. Kukhar V.V. Metodika ucheta smyatiya tortsevykh uchastkov zagotovok pri proektirovanii tekhnologij na osnove prodolnogo izgiba, Obrabotka materialov davleniem, Sb. nauch. tr., Kramatorsk, DGMA, 2012, N 4 (33), pp. 91-94.
13. Kukhar V.V. Formoizmenenie pri profilirovanii prodolnym izgibom zagotovok s razlichnoj formoj poperechnogo secheniya, Visnik Natsionalnogo Tekhnichnogo Universitetu Ukrainy ‘Kievskij politekhnichnij institut’, Seriya “Mashinobuduvannya”, N 60, pp. 169-173.
Downloads
Published
2016-02-12
How to Cite
Кухарь, В., & Присяжный, А. (2016). Improved of manufacturing process of "eye-bolt" forgings by twin die-forging with prior profiling of billets by buckling. Problems of Tribology, 77(3), 36–44. Retrieved from https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/461
Issue
Section
Articles
