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Towards the Manufacturing of Near Net Shape Medical Prostheses in Polymeric Sheet by Incremental Sheet Forming

  • Isabel Bagudanch
  • Gabriel Centeno
  • Carpóforo Vallellano
  • Maria Luisa Garcia-RomeuEmail author
Chapter
Part of the Materials Forming, Machining and Tribology book series (MFMT)

Abstract

The main objective of this chapter is to increase the existing knowledge in Incremental Sheet Forming (ISF), as a near net shape medical manufacturing process specifically for obtaining polymer of prostheses-parts, evaluating and defining the process parameters involved to improve the technology based on the analysis of quantitative outputs. This should help to provide process guidelines useful for manufacturing complex and customized parts, to be applied for example in the biomedical field. The chapter is divided into two main blocks: (i) the study of the influence of the process parameters on basic polymeric geometries manufactured by SPIF, and (ii) an analysis of some case studies of cranial implants manufactured by ISF using non-biocompatible and biocompatible polymers.

Keywords

ISF SPIF TPIF Polymeric sheet Cranial prosthesis 

List of Symbols

CISF

Total cost of the ISF process

Cf

Forming cost

Cs

Setup cost

Ci

Cost of workpiece and equipment handling

Ct

Tooling cost

CMD

Direct material cost

CMID

Indirect material cost

CED

Direct energy cost

CEA

Ancillary energy cost

Cenv

Environmental burden cost

tf

Forming time

Lf

Labour rate

Bf

Burden rate including depreciation, maintenance, taxes, interest rate

Kf

Forming cost rate including Lf and Bf

Np

Number of parts

ts

Setup time

ti

Idling time

tc

Time required to change tool

Kt

Tool cost

T

Tool life

KM

Cost of workpiece material

MD

Direct material used

KLOf

Cost of forming lubricant

LOf

Quantity of forming lubricant used

KLO

Cost of machine lubricant

LO

Quantity of machine lubricant used

KE

Cost of electricity

ED

Direct energy consumed

EA

Ancillary energy consumed

\( \text{E}_{\text{CO}_{2}} \)

CO2 emitted due to energy

\( \text{LO}_{\text{fCO}_{2}} \)

CO2 emitted due to forming lubricant

\( \text{LO}_{\text{CO}_{2}} \)

CO2 emitted due to machine lubricant

\( \text{TL}_{\text{CO}_{2}} \)

CO2 emitted due to the tool

\( \text{ML}_{\text{CO}_{2}} \)

CO2 emitted due to direct material

\( \text{K}_{\text{CO}_{2}} \)

Carbon cost

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Isabel Bagudanch
    • 1
  • Gabriel Centeno
    • 2
  • Carpóforo Vallellano
    • 2
  • Maria Luisa Garcia-Romeu
    • 1
    Email author
  1. 1.Department of Mechanical Engineering and Industrial ConstructionUniversity of GironaGironaSpain
  2. 2.Department of Mechanical and Manufacturing EngineeringUniversity of SevilleSevilleSpain

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