Juhani Orkas

Professor

Research outputs

  1. 2020
  2. Published

    Investigation on dynamic strain aging behaviour of ferritic-pearlitic ductile cast irons

    Jalava, K., Laine, J., Vaara, J., Frondelius, T. & Orkas, J., 22 Jan 2020, In : Materials Science and Technology. 36, 2, p. 160-167 8 p.

    Research output: Contribution to journalArticle

  3. 2018
  4. Published

    Thermal reclamation of foundry sands using repurposed sand dryer equipment

    Sappinen, T., Orkas, J. & Kronqvist, T., 25 Sep 2018.

    Research output: Contribution to conferencePosterScientific

  5. Published

    Thermal reclamation of foundry sands using repurposed sand dryer equipment

    Sappinen, T., Orkas, J. & Kronqvist, T., 23 Sep 2018.

    Research output: Contribution to conferenceAbstractScientific

  6. Published

    Effect of Silicon and Microstructure on Spheroidal Graphite Cast Iron Thermal Conductivity at Elevated Temperatures

    Jalava, K., Soivio, K., Laine, J. & Orkas, J., Jul 2018, In : INTERNATIONAL JOURNAL OF METALCASTING. 12, 3, p. 480-486 7 p.

    Research output: Contribution to journalArticle

  7. Published

    Elevated temperature thermal conductivities of some as-cast and austempered cast irons

    Jalava, K., Soivio, K., Laine, J. & Orkas, J., 2018, In : Materials Science and Technology. 34, 3, p. 327-333 7 p.

    Research output: Contribution to journalArticle

  8. Published

    MULTI-SCALE TOPOLOGICALLY OPTIMIZED COMPONENTS MADE BY CASTING AND ADDITIVE MANUFACTURING

    Jalava, K., Salmi, M., Kukko, K. & Orkas, J., 2018, 73rd World Foundry Congress, Congress Proceedings. p. 141-142 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  9. Published

    Thermal reclamation of foundry sands using repurposed sand dryer equipment

    Sappinen, T., Orkas, J. & Kronqvist, T., 2018, In : Archives of Foundry Engineering. 18, 4, p. 99-102 4 p.

    Research output: Contribution to journalArticle

  10. 2016
  11. Published

    Effect of annealing and metallurgical treatments on thermal conductivity of aluminium alloys

    Rauta, V., Cingi, C. & Orkas, J., 2016, In : INTERNATIONAL JOURNAL OF METALCASTING. 10, 2, p. 157-171 15 p.

    Research output: Contribution to journalArticle

  12. Published

    Submersibles of casted maraging steel

    Piha, O., Saarelainen, T. & Orkas, J., 2016, 72nd World Foundry Congress, WFC 2016. p. 22-23 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  13. 2014
  14. Published

    30 years history of educating finnish casting users

    Piha, O., Saarelainen, T. & Orkas, J., 2014, 71st World Foundry Congress: Advanced Sustainable Foundry, WFC 2014. World Foundry Organization

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  15. 2013
  16. Published

    A genetic fuzzy based modeling of effective thermal conductivity for polymer composites

    Nandi, A. K., Deb, K., Datta, S. & Orkas, J., 2013, In : Journal of Intelligent and Fuzzy Systems. 25, 2, p. 259-270

    Research output: Contribution to journalArticle

  17. 2012
  18. Published

    Effective properties of particle reinforced polymeric mould material towards reducing cooling time in soft tooling process

    Nandi, A. K., Datta, S. & Orkus, J., 5 May 2012, In : Journal of Applied Polymer Science. 124, 3, p. 2567-2581 15 p.

    Research output: Contribution to journalArticle

  19. Published

    Effect of Heat Treatment on Thermal Conductivity of Aluminum Die Casting Alloys

    Cingi, C., Rauta, V., Suikkanen, E. & Orkas, J., 2012, In : ADVANCED MATERIALS RESEARCH. 538-541, p. 2047-2052

    Research output: Contribution to journalArticle

  20. 2011
  21. Published

    Experimental investigation on equivalent properties of particle reinforced silicone rubber: Improvement of soft tooling process

    Nandi, A. K., Cingi, C., Datta, S. & Orkus, J., Sep 2011, In : JOURNAL OF REINFORCED PLASTICS AND COMPOSITES. 30, 17, p. 1429-1444 16 p.

    Research output: Contribution to journalArticle

  22. Published

    How to Compete Against Global Foundry Competition

    Orkas, J., Piha, O., Väinölä, J. & Savolainen, P., 2011, 51th International Foundry Conference, Portoroz, Slovenia, September 14-16, 2011. Foundrymen Society et al., S. (ed.). Ljubljana, Slovenia: Slovenian Foundrymen Society et al.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  23. Published
  24. 2010
  25. Published

    Agility in Volyme Changes as a Success Factor in the Future Global Foundry Industry

    Piha, O., Niini, E. & Orkas, J., 2010, 69th World Foundry Congress, Hangzhou China, October 16-20, 2010. Foundry Institution of Chinese Mechanical Engineering Society, FICMES. . (ed.). Hangzhou, China: World Foundry Organization, p. 85-93

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  26. Published

    Cast Bondong of Cast Irons to Ferritic Stainless Steel

    Celal, C., Rauta, V., Niini, E. & Orkas, J., 2010, In : Materials Science Forum. 654-656, p. 2712-2715

    Research output: Contribution to journalArticle

  27. Published

    Experimental Studies on Equivalent Thermal Properties of Particle-reinforced Flexible Mould Materials

    Nandi, A. K., Cingi, C. & Orkas, J., 2010, Fifth International Conference on High Performance Structures and Materials, Tallinn, Estonia, 26-28 July 2010. De Wilde, W. P. & Brebbia, C. C. . M. (eds.). p. 365-376

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  28. Published

    Studies on Equivalent Viscosity of Particle-Reinforced Flexible Mold Materials Used in Soft Tooling Process

    Nandi, A. K., Vesterinen, A., Cingi, C., Seppala, J. & Orkas, J., 2010, In : JOURNAL OF REINFORCED PLASTICS AND COMPOSITES. 29, 14, p. 2081-2098 18 p.

    Research output: Contribution to journalArticle

  29. 2009
  30. Published

    Customer's perspectives of foundries as suppliers: how Finnish foundries remain competitive?

    Saarelainen, T., Piha, O., Orkas, J. & Makkonen, P., 2009, 57th Indian Foundry Congress, Kolkata India, February 13-15, 2009. Head Office IIF Center, . & Rajdanga Main Road, K. (eds.). Kolkata, India: The institute of Indian Foundrymen, p. 289-300

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  31. Published

    Early Supplier Involvement in Casting Industry

    Eisto, T., Orkas, J. & Nieminen, M., 2009, 49th International Foundry Conference, Portoroz, Slovenia, September 9-11, 2009. p. 9

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  32. Published

    Foamed Aluminum Parts by Investment Casting

    Cingi, C., Niini, E. & Orkas, J., 2009, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 344, p. 113-117

    Research output: Contribution to journalArticle

  33. Published

    Morphological Investigation of Foamed Aluminium Parts Produced by Melt Gas Injection

    Surace, R., De Filippis, L. A. C., Niini, E., Ludovico, A. D. & Orkas, J., 2009, In : Advances in Materials Science and Engineering. 2009

    Research output: Contribution to journalArticle

  34. 2008
  35. Published

    Casting User's Perspective on Foundries as Suppliers

    Saarelainen, T., Piha, O., Orkas, J. & Makkonen, P., 2008, World Congress on Science, Engineering and Technology; Volyme 30, July 2008. World Academy of Science, E. (ed.). Paris, France, p. 511-516

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  36. Published

    Casting Users’ Perspectives on Foundries as Suppliers

    Saarelainen, T., Piha, O., Makkonen, P. & Orkas, J., 2008, In : International Journal of Human and Social Sciences. 3, 2, p. 127-132

    Research output: Contribution to journalArticle

  37. Published

    Enchancing competitiveness of European SME iron foundries by full customer service concept fitting together local production and outsourcing

    Nordlund, H., Saarelainen, T., Piha, O., Orkas, J., Makkonen, P. & Niini, E., 2008, In : Indian Foundry Journal. 54, 4, p. 31-36

    Research output: Contribution to journalArticle

  38. Published

    Enchancing competitiveness of European SME iron foundries by full customer service concept fitting together local production and outsourcing

    Nordlund, H., Saarelainen, T., Piha, O., Orkas, J., Makkonen, P. & Niini, E., 2008, 68th World Foundry Congress, Chennai, India, 7th-10th February, 2008. p. 239-243

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  39. Published

    ERP IN FOUNDRIES - Towards Optimized Cast Production with Order-Driven DES

    Kollanus, J., Nieminen, M. & Orkas, J., 2008, 68th WFC - World Foundry Congress 7th - 10th February, 2008. p. 255-259

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  40. Published

    Finnish Foundry Industry and Challenges of Global Casting Markets.

    Orkas, J., 2008, 48th International Foundry Conference, Portoroz, Slovenia, September 10-12, 2008.. Portoroz: Organised by Slovenian foundrymen society, p. 9-10

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  41. Published

    Issues in Procurement of Castings

    Saarelainen, T., Piha, O., Orkas, J. & Makkonen, P., 2008, In : International Journal of Human and Social Sciences. 3, 2, p. 121-126

    Research output: Contribution to journalArticle

  42. Published

    Issues in Procurement of Castings

    Saarelainen, T., Piha, O., Orkas, J. & Makkonen, P., 2008, World Congress on Science, Engineering and Technology, Paris, France, July 04-06, 2008. World Academy of Science, E. (ed.). Paris, France, p. 505-510

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  43. Published

    Kvartsipölysopimuksen ja REACH-asetuksen soveltaminen suomalaisessa valimoteollisuudessa

    Westenius, M. & Orkas, J., 2008, Espoo, (Teknillinen korkeakoulu, Koneenrakennustekniikan laitos; no. TKK-K-4/2008).

    Research output: Working paperProfessional

  44. Published

    Käsiin kohdistuvan tärinän vaikutusten vähentäminen valimotyössä 2: Tärinäaltistuksen vähentäminen

    Peräsaari, T. & Orkas, J., 2008, Espoo, p. 58, (Teknillinen korkeakoulu, Koneenrakennustekniikan laitos; no. TKK-K-1/08).

    Research output: Working paperProfessional

  45. Published

    Valimot ylikuormitettuja, miksi?Tulevaisuuden näkymät.

    Orkas, J., 2008, Valun käytön seminaari, Hämeenlinna, 3.-4.4.2008. p. Paper 3, s. 1-21

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  46. 2007
  47. Published

    Current and future practices in Finnish foundry industry - questionary study

    Saarelainen, T., Piha, O., Makkonen, P., Coatanéa, E. & Orkas, J., 2007, Proceedings of the 47th International Foundry Conference, Portoroz, Slovenia, September 12-14, 2007. Organised by Slovenian foundrymen society, p. 18-19

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  48. Published

    Process control and data analyzing methods in automatic sand casting foundries

    Rauta, V. & Orkas, J., 2007, In : Giessereiforschung. 59, 1, p. 12

    Research output: Contribution to journalArticle

  49. Published

    Role of oxygen in mould-metal reactions in investment casting of magnesium alloy AZ91E

    Cingi, C., Väinölä, J. & Orkas, J., 2007, In : Giessereiforschung. 59, 2, p. 18-27

    Research output: Contribution to journalArticle

  50. Published

    Uuden tärinädirektiivin vaikutus valimotyöhön.(New vibration directive and its affect in foundry work)

    Peräsaari, T. & Orkas, J., 2007, Espoo, p. 70, (Helsinki University of Technology, Laboratory of Foundry Engineering, Report TKK-VAL; no. 1).

    Research output: Working paperProfessional

  51. 2006
  52. Published

    Environmental management for ADI-production and foundry industry in Europe

    Orkas, J., 2006, Conference on ADI Production Technology, Wuhan, China, 18.-19.10.2006. p. 17-25

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  53. Published

    Mold-Metal Reactions in Investment Cast AZ91E Magnesium Alloy

    Cingi, C., Väinölä, J. & Orkas, J., 2006, In : Livarski Vestnik. 53, 2, p. 50-71

    Research output: Contribution to journalArticle

  54. Published

    Mold-Metal Reactions in Investment Cast AZ91E Magnesium Alloy

    Cingi, C., Väinölä, J. & Orkas, J., 2006, In : Giessereiforschung. 58, 1, p. 2-10

    Research output: Contribution to journalArticle

  55. 2005
  56. Published

    Mold-Metal Reactions in Investments Cast AZ91E Magnesium Alloy

    Cingi, C., Orkas, J. & Vainola, J., 2005, International 45. Foundry Conference, Portoroz, Slovenija, 14-16. September 2005. p. 35

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  57. 2003
  58. Published

    Kertamuottitekniikat

    Meskanen, S., Niini, E. & Orkas, J., 2003, Tampere: Tampereen teknillinen yliopisto / Valimoinstituutti.

    Research output: Book/ReportBook

  59. Published

    Sulatus- ja valutekniikka

    Meskanen, S., Niini, E., Orkas, J., Toivonen, P. & Myllymäki, J., 2003, Tampere: Tampereen teknillinen yliopisto / Valimoinstituutti.

    Research output: Book/ReportBook

  60. 2002
  61. Published

    Remploi avantageux des sables excedentaires de fonderie dans le compostage

    Orkas, J., 2002, In : Fonderie. 215, p. 34-40

    Research output: Contribution to journalArticle

  62. Published

    Utilization of foundry sands in earth constructions.Development of quality control system for foundry sands

    Wahlström, M., Laine-Ylijoki, J. & Orkas, J., 2002, Benefical Use of Recycled Materials in Transportation Applications. Washington, DC., 13 - 15 Nov. 2001.. Recycled materials resource center, University of New Hampshire, p. 10

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  63. Published

    Valimoalan tulevaisuuden haasteet

    Orkas, J., 2002, In : Vuorimies. 1, p. 20-25

    Research output: Contribution to journalArticle

  64. Published

    Valimotekniikan perusteet

    Meskanen, S., Niini, E., Orkas, J. & Myllymäki, J., 2002, Tampere: Tampereen teknillinen korkeakoulu / Valimoinstituutti.

    Research output: Book/ReportBook

  65. Published

    Valutuotteen suunnitteluperusteet

    Orkas, J. & Myllymäki, J., 2002, Valun käytön seminaari, Hämeenlinna, 11.-12.4.2002. p. paper 2, 18 s.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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