Hybrid foundry patterns of bevel gears

• Autorzy: Budzik G. , Markowski T. , Sobolak M.
• Języki publikacji: EN

Abstrakty

EN

Possibilities of making hybrid foundry patterns of bevel gears for investment casting process are presented. Rapid prototyping of gears with complex tooth forms is possible with the use of modern methods. One of such methods is the stereo-lithography, where a pattern is obtained as a result of resin curing with laser beam. Patterns of that type are applicable in precision casting. Removing of stereo-lithographic pattern from foundry mould requires use of high temperatures. Resin burning would generate significant amounts of harmful gases. In case of a solid stereo-lithographic pattern, the pressure created during gas burning may cause the mould to crack. A gas volume reduction may be achieved by using patterns of honeycomb structure. However, this technique causes a significant worsening of accuracy of stereo-lithographic patterns in respect of their dimensions and shape. In cooperation with WSK PZL Rzeszów, the Machine Design Department of Rzeszow University of Technology carried out research on the design of hybrid stereo-lithographic patterns. Hybrid pattern consists of a section made by stereo-lithographic process and a section made of casting wax. The latter material is used for stereo-lithographic pattern filling and for mould gating system. The hybrid pattern process consists of two stages: wax melting and then the burn-out of stereolithographic pattern. Use of hybrid patterns reduces the costs of production of stereolithographic patterns. High dimensional accuracy remains preserved in this process.

Słowa kluczowe

EN

innovative materials; innovative casting technology; gears; rapid prototyping systems; stereolithography; lost-wax casting method

PL

materiały innowacyjne w odlewnictwie; technologie innowacyjne; koła zębate; wykorzystanie techniki RPS

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2007
• Tom: Vol. 7, iss. 1
• Strony: 131--134
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Budzik G.

autor

Markowski T.

autor

Sobolak M.

• Machine Design Department, Rzeszow University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów,

Bibliografia

• [1] R. Haratym, J. Tomasik, The influence of ceramic mould quality on surface geometry of Al investment casting, Archives of Foundry, Volume 6, No18 (2/2), (2006) 237-242 (in Polish)
• [2] D. Myszka, J. Modzelewski, M. Leśniwski, A. Kerwiński, Introduction to titanium investment casting as implants use, Archives of Foundry, Volume 6, No18 (2/2), (2006) 237-242 (in Polish)
• [3] R. Hartym, Dimensional Accuracy of investment casting for the burned pattern process, Archives of Foundry, Volume 6, No18 (2/2), (2006) 231-236 (in Polish)
• [4] J.C. Feriera, E. Santos, H. Madureira, J.Castro, Integration of VP/RP/RT/RE/RM for rapid product and process development, Rapid Prototyping Journal Vol. 12 No. 1/2006, Emerald 2006, 18-28.
• [5] S. H. Choi, S. Samavedam, Patternling and optimisation of Rapid Prototyping, Computers in Industry No 47/2002.
• [6] N. Homburg, E. Wellbrock, Knowledge-based manufacturing strategy and methods for foundries, Conference and Exhibition for Rapid Technology, Erfurt 2006.
• [7] A. Gebhardt, Rapid Prototyping, Carl Hanser Verlag, Munich 2003.
• [8] K.L. Mak, H.Y.K Lau., S.T.W. Wong, An object-oriented prototyping tool for automated manufacturing systems, Computers in Industry 43 (2000) 43-60, Elsevier 2000.
• [9] Y. Song, Y. Yan, R. Zhang, F. Wang, Manufacture of the die of an automobile deck part based on rapid prototyping and rapid tooling technology. Journal of Materials Processing Technology 120 (2002) 237-242, Elsevier 2001.
• [10] D.Kochan, C.K.Chua, State-of-the-art and future trends in rapid prototyping and manufacturing. International Journal of Information Technology. 1, 1995, p.173-184.
• [11] G. Budzik, D. Kozdęba, M. Sobolak, Rapid Prototyping method of investment pattern of blade in silicone mould. Archives of Foundry, Volume 6, No18 (2/2), (2006) 201-206 (in Polish).
• [12] G. Budzik, D. Kozdęba, M. Sobolak, Rapid Prototyping technology using for investment casting process, Archives of Foundry, Volume 6, No18 (2/2), (2006) 207-212 (in Polish)
• [13] S. Miechowicz, M. Sobolak, G. Budzik, The complex rapid prototyping STL free surface generation", International Scientific Conference PRO-TECH-MA Rzeszów - Bezmiechowa, Oficyna Wydawnicza Politechniki Rzeszowskiej (University Publishing House), Rzeszów 2005.
• [14] 3D Lightyear SLA File Preparation Software - User's Guide 2001.
• [15] Stereolithography Buildstation - 3D Systems Publications 2001