Assessment of the mechanical performance of titanium cranial prostheses manufactured by super plastic forming and single point incremental forming

2018 ◽  
Author(s):  
Emanuele Sgambitterra ◽  
Antonio Piccininni ◽  
Pasquale Guglielmi ◽  
Giuseppina Ambrogio ◽  
Gionata Fragomeni ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming ◽  
Super Plastic ◽  
Plastic Forming ◽  
Super Plastic Forming

Improve the Micro-hardness of Single Point Incremental Forming Product Using Magnetic Abrasive Finishing

2020 ◽  
Vol 38 (8A) ◽  
pp. 1137-1142
Author(s):  
Baqer A. Ahmed ◽  
Saad K. Shather ◽  
Wisam K. Hamdan
Keyword(s):  
Vickers Hardness ◽  
Feed Rate ◽  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming ◽  
Step Size ◽  
Coil Current ◽  
Magnetic Abrasive Finishing ◽  
Finishing Process ◽  
Abrasive Finishing

In this paper the Magnetic Abrasive Finishing (MAF) was utilized after Single Point Incremental Forming (SPIF) process as a combined finishing process. Firstly, the Single Point Incremental forming was form the truncated cone made from low carbon steel (1008-AISI) based on Z-level tool path then the magnetic abrasive finishing process was applied on the surface of the formed product. Box-Behnken design of experiment in Minitab 17 software was used in this study. The influences of different parameters (feed rate, machining step size, coil current and spindle speed) on change in Micro-Vickers hardness were studied. The maximum and minimum change in Micro-Vickers hardness that achieved from all the experiments were (40.4 and 1.1) respectively. The contribution percent of (feed rate, machining step size, coil current and spindle speed) were (7.1, 18.068, 17.376 and 37.894) % respectively. After MAF process all the micro surface cracks that generated on the workpiece surface was completely removed from the surface.

INCONEL ALLOY 718SPF

Alloy Digest ◽  
1994 ◽  
Vol 43 (11) ◽  
Keyword(s):  
Base Alloy ◽  
Low Flow ◽  
Inconel Alloy ◽  
Gamma Prime ◽  
Size Stability ◽  
Super Plastic ◽  
Plastic Forming ◽  
Super Plastic Forming ◽  
Grain Size Stability ◽  
Prime Phase

Abstract INCONEL alloy 718SPF is an age-hardenable austenitic material whose strength is largely dependent on the precipitation of a gamma prime phase following heat treatment. The base alloy, however, possesses two-essential characteristics for super-plastic forming; grain size stability over time and temperature; and a combination of low flow stress and significant ductility. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties as well as creep and fatigue. It also includes information on low and high temperature performance. Filing Code: Ni-471. Producer or source: Inco Alloys International Inc.

Multiobjective optimization of process variables in single-point incremental forming using grey relational analysis coupled with entropy weights

2021 ◽  
pp. 146442072110204
Author(s):  
Abdulmajeed Dabwan ◽  
Adham E Ragab ◽  
Mohamed A Saleh ◽  
Atef M Ghaleb ◽  
Mohamed Z Ramadan ◽  
...  
Keyword(s):  
Grey Relational Analysis ◽  
Incremental Forming ◽  
Single Point ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Numerical Control ◽  
Single Point Incremental Forming ◽  
Process Variables ◽  
Relational Analysis ◽  
Grey Relational

Incremental sheet forming is a specific group of sheet forming methods that enable the manufacture of complex parts utilizing computer numerical control instead of specialized tools. It is an incredibly adaptable operation that involves minimal usage of sophisticated tools, dies, and forming presses. Besides its main application in the field of rapid prototyping, incremental sheet forming processes can be used for the manufacture of unique parts in small batches. The goal of this study is to broaden the knowledge of the deformation process in single-point incremental forming. This work studies the deformation behavior in single-point incremental forming by experimentally investigating the principal stresses, principal strains, and thinning of single-point incremental forming products. Conical-shaped components are fabricated using AA1050-H14 aluminum alloy at various combinations of fundamental variables. The factorial design is employed to plan the experimental study and analysis of variance is conducted to analyze the results. The grey relational analysis approach coupled with entropy weights is also implemented to identify optimum process variables for single-point incremental forming. The results show that the tool diameter has the greatest effect on the thinning of the SPIF product, followed by the sheet thickness, step size, and feed rate.

scholarly journals Characterisation of geometrical and physical properties of a stainless steel denture framework manufactured by single-point incremental forming

2021 ◽  
Vol 10 ◽  
pp. 605-623
Author(s):  
Mladomir Milutinović ◽  
Robert Lendjel ◽  
Sebastian Baloš ◽  
Danka Labus Zlatanović ◽  
Luka Sevšek ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Physical Properties ◽  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming

Progress on single-point incremental forming of polymers

2021 ◽  
Vol 114 (1-2) ◽  
pp. 1-26
Author(s):  
Malik Hassan ◽  
G. Hussain ◽  
Hongyu Wei ◽  
Abdul Qadeer ◽  
Mohammed AlKahtani
Keyword(s):  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming

On the high-speed Single Point Incremental Forming of titanium alloys

CIRP Annals ◽  
2013 ◽  
Vol 62 (1) ◽  
pp. 243-246 ◽  
Author(s):  
G. Ambrogio ◽  
F. Gagliardi ◽  
S. Bruschi ◽  
L. Filice
Keyword(s):  
Titanium Alloys ◽  
High Speed ◽  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming
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