Production Engineering

, Volume 11, Issue 3, pp 255–263 | Cite as

Investigation of the coating thickness of plasma-transferred arc deposition welded and cross wedge rolled hybrid parts

  • Thoms BlohmEmail author
  • Maximilian Mildebrath
  • Malte Stonis
  • Jan Langner
  • Thomas Hassel
  • Bernd-Arno Behrens
Production Process


Most of today’s technical parts and components are made of monolithic materials. These mono-material components produced in established production processes reach their limits due to their respective material characteristics. Thus, a significant increase in production quality and efficiency can only be achieved by combining different materials in one part. Bulk forming of previously joined semi-finished products to net shape hybrid components that consist of two different materials is a promising method to produce parts with locally optimized characteristics. This new production process chain offers a number of advantages compared to conventional manufacturing technologies. Examples are the production of specific load-adapted forged parts with a high level of material utilization, an improvement of the joining zone caused by the following forming process and an easy to implement joining process due to the simple geometries of the semi-finished products. This paper describes the production process of hybrid steel parts, produced by combining a plasma-transferred arc deposition welding process with a subsequent cross wedge rolling process. This innovative process chain enables the production of hybrid parts. To evaluate the developed process chain, coating thickness of the billet is analysed before and after cross wedge rolling. It could be shown, that the forming process leads to an improvement of the coating, meaning a more homogeneous distribution along the main axis.


Process chain Plasma-transferred arc deposition welding Hybrid parts Cross wedge rolling 



The results presented in this paper were obtained within the Collaborative Research Centre 1153 ‘‘Process chain to produce hybrid high performance components by Tailored Forming’’ in the subprojects A4 and B1. The authors would like to thank the German Research Foundation (DFG) for the financial and organisational support of this project.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


  1. 1.
    Bach FW et al (2005) Moderne Beschichtungsverfahren. Wiley, Germany, pp 292–305Google Scholar
  2. 2.
    Dilthey U et al (2005) Schweißtechnische Fertigungsverfahren 2—Verhalten der Werkstoffe beim Schweißen. 3. Bearbeitete Auflage. Springer, Berlin, p 130Google Scholar
  3. 3.
    Jhavar S, Jain NK, Paul CP (2014) Development of micro-plasma transferred arc (µ-PTA) wire deposition process for additive layer manufacturing applications. J Mater Process Technol 214:1102–1110CrossRefGoogle Scholar
  4. 4.
    Ulutan M et al (2016) The effects of PTA surface melting on the microstructure, hardness, and wear behavior were investigated. J Mech Sci Technol 30:3813. doi: 10.1007/s12206-016-0744-y CrossRefGoogle Scholar
  5. 5.
    Motallebzadeh A, Atar E, Cimenoglu H (2016) Raman spectroscopy characterization of hypo-eutectic CoCrWC alloy tribolayers. Ind Lubr Tribol 68–4:515–520CrossRefGoogle Scholar
  6. 6.
    Ferozhkhan MM et al (2016) Plasma transfered arc welding of stellite 6 alloy on stainless steel for wear resistance. Procedia Technol 25:1305–1311CrossRefGoogle Scholar
  7. 7.
    Lange K (1988) Umformtechnik Band 2: Massivumformung. Springer, Berlin (u. a.)Google Scholar
  8. 8.
    Li Q, Lovell M (2008) Cross wedge rolling failure mechanisms and industrial application. Int J Adv Manuf Technol 37(3–4):265–278. doi: 10.1007/s00170-007-0979-y CrossRefGoogle Scholar
  9. 9.
    Blohm T, Stonis M, Behrens BA (2015) Investigation of simulation parameters for cross wedge rolling titanium and bainitic grade steel. Appl Mech Mater 736:165–170CrossRefGoogle Scholar
  10. 10.
    Knust J, Stonis M, Behrens BA (2016) Preform optimization for hot forging processes using an adaptive amount of flash based on the cross section shape complexity. Prod Eng Res Devel. doi: 10.1007/s11740-016-0702-7 Google Scholar
  11. 11.
    Knust J et al (2016) Preform optimization for hot forging processes using genetic algorithms. Int J Adv Manuf Technol. doi: 10.1007/s00170-016-9209-9 Google Scholar
  12. 12.
    Kache H, Stonis M, Behrens BA (2012) Development of a warm cross wedge rolling process using FEA and downsized experimental trials. Prod Eng Res Devel 6:339–348. doi: 10.1007/s11740-012-0379-5 CrossRefGoogle Scholar
  13. 13.
    Blohm T et al (2016) Investigating the effects of cross wedge rolling preforming operation and die forging with flash brakes on forging titanium hip implants. Int J Mater Form. doi: 10.1007/s12289-016-1329-0 Google Scholar
  14. 14.
    Li Q et al (2002) Investigation of the morphology of internal defects in cross wedge rolling. J Mater Process Technol 125–126:248–257. doi: 10.1016/S0924-0136(02)00303-5 CrossRefGoogle Scholar
  15. 15.
    Cakircali M et al (2013) Cross wedge rolling of a Ti6Al4V (ELI) alloy: the experimental studies and the finite element simulation of the deformation and failure. Int J Adv Manuf Technol 65:1273–1287. doi: 10.1007/s00170-012-4256-3 CrossRefGoogle Scholar
  16. 16.
    Novella MF et al (2015) Ductile damage modeling at elevated temperature applied to the cross wedge rolling of AA6082-T6 bars. J Mater Process Technol 222:259–267CrossRefGoogle Scholar
  17. 17.
    Tofil A, Tomczak J, Pater Z (2013) Cross wedge rolling with upsetting. Arch Metall Mater 58: 1191–1196. doi: 10.2478/amm-2013-0150 Google Scholar
  18. 18.
    Pater Z et al (2015) Numerical analysis of the cross wedge rolling process (CWR) for a stepped shaft. Metabk 54–1: 177–180Google Scholar
  19. 19.
    Bartnicki J et al (2014) Innovative metal forming technologies. J Mach Eng 14:5–16Google Scholar
  20. 20.
    Meyer M, Stonis M, Behrens BA (2015) Cross wedge rolling and bi-directional forging of preforms for crankshafts. Prod Eng Res Dev 9–1:61–71CrossRefGoogle Scholar
  21. 21.
    Ji H et al (2017) A new method for manufacturing hollow valves via cross wedge rolling and forging: numerical analysis and experiment validation. J Mater Process Technol 240:1–11CrossRefGoogle Scholar
  22. 22.
    Rahimi Mamaghani K, Kazeminezhad M (2014) The effect of direct- and cross-rolling on mechanical properties and microstructure of severely deformed aluminum. J of Materi Eng Perform 23:115–124CrossRefGoogle Scholar

Copyright information

© German Academic Society for Production Engineering (WGP) 2017

Authors and Affiliations

  • Thoms Blohm
    • 2
    Email author
  • Maximilian Mildebrath
    • 3
  • Malte Stonis
    • 2
  • Jan Langner
    • 2
  • Thomas Hassel
    • 3
  • Bernd-Arno Behrens
    • 1
  1. 1.Institute of Forming Technology and Machines (IFUM)Leibniz Universität HannoverGarbsenGermany
  2. 2.Institut für Integrierte Produktion Hannover Gemeinnützige GmbH (IPH)HanoverGermany
  3. 3.Institute for Material Science (IW)Leibniz Universität HannoverGarbsenGermany

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