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A review of melt extrusion additive manufacturing processes: II. Materials, dimensional accuracy, and surface roughness

Rapid prototyping journal, 2015-04, Vol.21 (3), p.250-261 [Peer Reviewed Journal]

Emerald Group Publishing Limited ;Emerald Group Publishing Limited 2015 ;ISSN: 1355-2546 ;EISSN: 1758-7670 ;DOI: 10.1108/RPJ-02-2013-0017 ;CODEN: RPJOFC

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  • Title:
    A review of melt extrusion additive manufacturing processes: II. Materials, dimensional accuracy, and surface roughness
  • Author: Turner, Brian N ; Gold, Scott A
  • Subjects: Accuracy ; Additive manufacturing ; Additives ; Colleges & universities ; Control algorithms ; Engineering ; Extrusion ; Industrial engineering, design & manufacturing ; Mathematical models ; Mechanical properties ; Process controls ; Product design ; Rapid prototyping ; Raw materials ; Roads & highways ; Shrinkage ; Software ; Surface roughness ; Visual aids
  • Is Part Of: Rapid prototyping journal, 2015-04, Vol.21 (3), p.250-261
  • Description: Purpose – The purpose of this paper is to critically review the literature related to dimensional accuracy and surface roughness for fused deposition modeling and similar extrusion-based additive manufacturing or rapid prototyping processes. Design/methodology/approach – A systematic review of the literature was carried out by focusing on the relationship between process and product design parameters and the dimensional and surface properties of finished parts. Methods for evaluating these performance parameters are also reviewed. Findings – Fused deposition modeling® and related processes are the most widely used polymer rapid prototyping processes. For many applications, resolution, dimensional accuracy and surface roughness are among the most important properties in final parts. The influence of feedstock properties and system design on dimensional accuracy and resolution is reviewed. Thermal warping and shrinkage are often major sources of dimensional error in finished parts. This phenomenon is explored along with various approaches for evaluating dimensional accuracy. Product design parameters, in particular, slice height, strongly impact surface roughness. A geometric model for surface roughness is also reviewed. Originality/value – This represents the first review of extrusion AM processes focusing on dimensional accuracy and surface roughness. Understanding and improving relationships between materials, design parameters and the ultimate properties of finished parts will be key to improving extrusion AM processes and expanding their applications.
  • Publisher: Bradford: Emerald Group Publishing Limited
  • Language: English
  • Identifier: ISSN: 1355-2546
    EISSN: 1758-7670
    DOI: 10.1108/RPJ-02-2013-0017
    CODEN: RPJOFC
  • Source: ProQuest Central
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