Skip to main content

Tipp

Weitere Kapitel dieses Buchs durch Wischen aufrufen

2021 | OriginalPaper | Buchkapitel

Bulk Microforming from Sheet Metal—A Promising Approach for the Mass Production of Cold-Formed Metallic Micro Parts

verfasst von : Martin Kraus, Marion Merklein

Erschienen in: Forming the Future

Verlag: Springer International Publishing

Abstract

Every year billions of micro parts are produced. In mass production, cold bulk forming offers considerable technological, economical, and ecological potentials compared to alternative production methods. Due to the occurrence of scale effects, high tool stresses, and handling problems, cold bulk forming is not used for the mass production of multi-stage formed metallic micro parts. Within this paper, multi-stage bulk microforming from sheet metal is investigated on the laboratory scale with the material Cu-OFE. Throughout this process, the sheet metal strip serves both as a semi-finished product and as a handling aid. In the first forming stage, a pin is extruded from sheet metal, which is then extruded in a cup during the second stage. For the identification of size effects and the evaluation of such effects on the part quality, the tests are carried out on macro- and micro-scale. In the first step, the process-influencing variable of the blank holder pressure is investigated in the first forming stage in order to derive measures for the highest possible material utilization. The two-stage forming of the pin with cup is compared with a single-stage process to assess the part quality and material utilization depending on the process strategy. Using the correct geometric scaling, size effects are identified and their effects on the forming process are evaluated. The experimental results reveal that it is possible to fabricate micro parts with a diameter of 470 µm and a minimum wall thickness of 36 µm reproducible by using the presented cold bulk microforming process strategy.

Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt 90 Tage mit der neuen Mini-Lizenz testen!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe



 


Jetzt 90 Tage mit der neuen Mini-Lizenz testen!

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt 90 Tage mit der neuen Mini-Lizenz testen!

Literatur
1.
Zurück zum Zitat Fassi I, Shipley D (2017) Micro-manufacturing technologies and their applications: a theoretical and practical guide. In: Springer Tracts in Mechanical Engineering. Springer International Publishing Switzerland Fassi I, Shipley D (2017) Micro-manufacturing technologies and their applications: a theoretical and practical guide. In: Springer Tracts in Mechanical Engineering. Springer International Publishing Switzerland
2.
Zurück zum Zitat Bouchaud J (2011) High value MEMS market overview. Paper presented at the Conference Design, Test, Integration & Packaging of MEMS/MOEMS, Marseilles, 12 May 2011 Bouchaud J (2011) High value MEMS market overview. Paper presented at the Conference Design, Test, Integration & Packaging of MEMS/MOEMS, Marseilles, 12 May 2011
3.
Zurück zum Zitat Mounier E (2014) Future of MEMS: a market & technologies perspective. Paper presented at MEMS Teck Seminar, October 2014 Mounier E (2014) Future of MEMS: a market & technologies perspective. Paper presented at MEMS Teck Seminar, October 2014
4.
Zurück zum Zitat Engel U, Eckstein R (2002) Microforming from basic research to its realization. J Mater Process Technol 125–126:35–44 CrossRef Engel U, Eckstein R (2002) Microforming from basic research to its realization. J Mater Process Technol 125–126:35–44 CrossRef
5.
Zurück zum Zitat Vollertsen F, Schulze Niehoff H, Hu Z (2006) State of the art in micro forming. Int J Mach Tools Manuf 46:1172–1179 CrossRef Vollertsen F, Schulze Niehoff H, Hu Z (2006) State of the art in micro forming. Int J Mach Tools Manuf 46:1172–1179 CrossRef
6.
Zurück zum Zitat Geiger M, Kleiner M, Eckstein R, Tiesler N, Engel U (2001) Microforming. CIRP Ann 50(2):445–462 CrossRef Geiger M, Kleiner M, Eckstein R, Tiesler N, Engel U (2001) Microforming. CIRP Ann 50(2):445–462 CrossRef
7.
Zurück zum Zitat Vollertsen F, Biermann D, Hansen H, Jawahir I, Kuzman K (2009) Size effects in manufacturing of metallic components. CIRP Annals—Manufacturing Technology 58:566–587 CrossRef Vollertsen F, Biermann D, Hansen H, Jawahir I, Kuzman K (2009) Size effects in manufacturing of metallic components. CIRP Annals—Manufacturing Technology 58:566–587 CrossRef
8.
Zurück zum Zitat Hezong L, Xianghuai D, Qian W, Yu S, Diehl A, Hagenah H, Engel U, Merklein M (2011) Determination of material intrinsic length and strain gradient hardening in microbending process. Int J Solids Struct 48:163–174 CrossRef Hezong L, Xianghuai D, Qian W, Yu S, Diehl A, Hagenah H, Engel U, Merklein M (2011) Determination of material intrinsic length and strain gradient hardening in microbending process. Int J Solids Struct 48:163–174 CrossRef
9.
Zurück zum Zitat Vollertsen F, Biermann D, Hansen H, Jawahir I, Kuzman K (2009) Size effects in manufacturing of metallic components. CIRP Ann Manuf Technol 58(2):566–587 CrossRef Vollertsen F, Biermann D, Hansen H, Jawahir I, Kuzman K (2009) Size effects in manufacturing of metallic components. CIRP Ann Manuf Technol 58(2):566–587 CrossRef
10.
Zurück zum Zitat Hirota K, Michitsuji K (2015) Deformation behavior in boss forming with small punch/die diameter ratio. J Mater Process Technol 216:294–301 CrossRef Hirota K, Michitsuji K (2015) Deformation behavior in boss forming with small punch/die diameter ratio. J Mater Process Technol 216:294–301 CrossRef
11.
Zurück zum Zitat Meng B, Fu M, Shi S (2018) Deformation characteristic and geometrical size effect in continuous manufacturing of cylindrical and variable-thickness flanged microparts. J Mater Process Technol 252:546–558 CrossRef Meng B, Fu M, Shi S (2018) Deformation characteristic and geometrical size effect in continuous manufacturing of cylindrical and variable-thickness flanged microparts. J Mater Process Technol 252:546–558 CrossRef
12.
Zurück zum Zitat Ghassemali E, Tan M, Jarfors A, Lim S (2013) Progressive microforming process: Towards the mass production of micro-parts using sheet metal. Int J Adv Manuf Technol 66:611–621 CrossRef Ghassemali E, Tan M, Jarfors A, Lim S (2013) Progressive microforming process: Towards the mass production of micro-parts using sheet metal. Int J Adv Manuf Technol 66:611–621 CrossRef
13.
Zurück zum Zitat Hirota K (2007) Fabrication of micro-billet by sheet extrusion. J Mater Process Technol 191(1–3):283–287 CrossRef Hirota K (2007) Fabrication of micro-billet by sheet extrusion. J Mater Process Technol 191(1–3):283–287 CrossRef
14.
Zurück zum Zitat Merklein M, Stellin T, Engel U (2012) Experimental study of a full forward extrusion process from metal strip. Key Eng Mater 504–506:587–592 CrossRef Merklein M, Stellin T, Engel U (2012) Experimental study of a full forward extrusion process from metal strip. Key Eng Mater 504–506:587–592 CrossRef
15.
Zurück zum Zitat Ghassemali E, Jarfors A, Tan M, Lim S (2013) On the microstructure of micro-pins manufactured by a novel progressive microforming process. IntJ Mater Form 6(1):65–74 CrossRef Ghassemali E, Jarfors A, Tan M, Lim S (2013) On the microstructure of micro-pins manufactured by a novel progressive microforming process. IntJ Mater Form 6(1):65–74 CrossRef
16.
Zurück zum Zitat Geiger M, Messner A, Engel U (1997) Production of microparts—size effects in bulk metal forming, similarity theory. Prod Eng Res Devel 4(1):55–58 Geiger M, Messner A, Engel U (1997) Production of microparts—size effects in bulk metal forming, similarity theory. Prod Eng Res Devel 4(1):55–58
17.
Zurück zum Zitat Merklein M, Kuppert A (2009) A method for the layer compression test considering the anisotropic material behavior. IntJ Mater Form 2:483 CrossRef Merklein M, Kuppert A (2009) A method for the layer compression test considering the anisotropic material behavior. IntJ Mater Form 2:483 CrossRef
18.
Zurück zum Zitat Shen Y, Yu H, Ruan X (2006) Discussion and prediction on decreasing flow stress scale effect. Trans Nonferrous Metals Soc China 16(1):132–136 CrossRef Shen Y, Yu H, Ruan X (2006) Discussion and prediction on decreasing flow stress scale effect. Trans Nonferrous Metals Soc China 16(1):132–136 CrossRef
19.
Zurück zum Zitat Meßner A (1998) Kaltmassivumformung metallischer Kleinstteile—Werkstoffverhalten, Wirkflächenreibung. Prozessauslegung, Meisenbach, Bamberg Meßner A (1998) Kaltmassivumformung metallischer Kleinstteile—Werkstoffverhalten, Wirkflächenreibung. Prozessauslegung, Meisenbach, Bamberg
Metadaten
Titel
Bulk Microforming from Sheet Metal—A Promising Approach for the Mass Production of Cold-Formed Metallic Micro Parts
verfasst von
Martin Kraus
Marion Merklein
Copyright-Jahr
2021
DOI
https://doi.org/10.1007/978-3-030-75381-8_12

    Marktübersichten

    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen.