Investigating the Effect of Process Parameters in Incremental Sheet Forming Process

2021 ◽  
pp. 24-36
Author(s):  
Manish Oraon ◽  
Manish Kumar Roy ◽  
Vinay Sharma
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Process ◽  
Batch Production ◽  
Force Microscopy ◽  
Atomic Force ◽  
Roughness Analysis ◽  
Step Down

Incremental sheet forming (ISF) is an emerging technique of sheet metal working that comes into the picture in the last two decades. The ISF involved the forming of shapes without using the dedicated dies. ISF is suitable for customized products, rapid prototyping, and low batch production. The study aims to investigate the effect of process parameters on the surface roughness. The experiments are conducted on aluminum AA3003-O grade with six parameters, and the trials are performed according to the design of experiment (DOE). The atomic force microscopy (AFM) technique is used for measuring the surface roughness. Analysis of variance (ANOVA) is used for analyzing the effect of process parameters in ISF. The result shows that the step-down size, feed rate of the tool, and wall angle are significant process parameter and their contributions for ISF are 85.86%, 1.12%, and 12.29%, respectively.

Modelling of the effects of process parameters on energy consumption for incremental sheet forming process

2020 ◽  
Vol 250 ◽  
pp. 119456 ◽  
Author(s):  
Fuyuan Liu ◽  
Xiaoqiang Li ◽  
Yanle Li ◽  
Zijian Wang ◽  
Weidong Zhai ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Process Parameters ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Process

Parameter optimization and texture evolution in single point incremental sheet forming process

2019 ◽  
Vol 234 (1-2) ◽  
pp. 126-139 ◽  
Author(s):  
Shamik Basak ◽  
K Sajun Prasad ◽  
Amarjeet Mehto ◽  
Joy Bagchi ◽  
Y Shiva Ganesh ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
Regression Models ◽  
Incremental Forming ◽  
Single Point ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Single Point Incremental Forming ◽  
Input Process ◽  
Truncated Cone

Prototyping through incremental sheet forming is emerging as a latest trend in the manufacturing industries for fabricating personalized components according to customer requirement. In this study, a laboratory scale single-point incremental forming test setup was designed and fabricated to deform AA6061 sheet metal plastically. In addition, response surface methodology with Box–Behnken design technique was used to establish different regression models correlating input process parameters with mechanical responses such as angle of failure, part depth per unit time and surface roughness. Correspondingly, the regression models were implemented to optimize the input process parameters, and the predicted responses were successfully validated at the optimal conditions. It was observed that the predicted absolute error for angle of failure, part depth per unit time and surface roughness responses was approximately 0.9%, 4.4% and 6.3%, respectively, for the optimum parametric combination. Furthermore, the post-deformation responses from an optimized single point incremental forming truncated cone were correlated with microstructural evolution. It was observed that the peak hardness and highest areal surface roughness of 158 ± 9 HV and 1.943 μm, respectively, were found near to the pole of single-point incremental forming truncated cone, and the highest major plastic strain at this region was 0.80. During incremental forming, a significant increase in microhardness occurred due to grain refinement, whereas a substantial increase in the Brass and S texture component was responsible for the increase in the surface roughness.

Review of the effect of process parameters on performance measures in the incremental sheet forming process

2020 ◽  
pp. 095440542096121
Author(s):  
Ashish Gohil ◽  
Bharat Modi
Keyword(s):  
Process Parameters ◽  
Metal Forming ◽  
Lead Time ◽  
Incremental Forming ◽  
Low Cost ◽  
Research Work ◽  
Sheet Forming ◽  
Commercial Production ◽  
Incremental Sheet Forming ◽  
Forming Process

Incremental sheet forming process has developed the interest of researchers in the field of sheet metal forming due to high formability and capability to produce prototypes of new products at low cost and minimum lead time. Research work is going on in various front to enhance the process capabilities so that it can be explored for commercial production. In this article, progress and recent development in the field of incremental forming has been reviewed and presented for the benefit of practicing engineers and industry. The effect of various process parameters on the performance of the process have been summarized in this paper. Moreover, the issues which need attention are discussed towards the conclusion of this paper.

MICROSTRUCTURE EVOLUTION OF GOLD ATOMIC AGGREGATES FABRICATED ON SILICONE OIL SURFACE

2015 ◽  
Vol 22 (05) ◽  
pp. 1550066 ◽  
Author(s):  
YUANXIN FENG ◽  
CHUHANG ZHANG
Keyword(s):  
Surface Roughness ◽  
Microstructure Evolution ◽  
Au Nanoparticles ◽  
Silicone Oil ◽  
Force Microscopy ◽  
Atomic Force ◽  
Roughness Analysis ◽  
Shadowing Effect ◽  
The Mean ◽  
Afm Observation

Gold atomic aggregates are fabricated by vapor-depositing Au atoms onto a silicone oil surface and the microstructure evolution is investigated by atomic force microscopy (AFM) observation. It is found that the Au aggregates are composed of Au circular nanoparticles with diameter around 45 nm, which is independent with the nominal film thickness d. As d increases from 1 nm to 15 nm, the height of the nanoparticles increases from 15 nm to 25 nm, indicating the geometric shape of the Au nanoparticles evolves from plateau to spherical. Furthermore, the roughness analysis shows that the mean surface roughness increases linearly with d in the range of 1 nm–15 nm, which is quite different from the findings in Ag system. The anomalous microstructure evolution of Au aggregates suggests that the growth of Au aggregates may be dominated by the shadowing effect.

Numerical Simulation on the Effect of Process Parameters for Incremental Sheet Forming

2010 ◽  
Vol 97-101 ◽  
pp. 158-161 ◽  
Author(s):  
Qin Qin ◽  
Di Ping Wu ◽  
Mi Li ◽  
Yong Zang
Keyword(s):  
Process Parameters ◽  
Rapid Prototype ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Layered Manufacturing ◽  
Forming Process ◽  
Step Size ◽  
Flexible Technology ◽  
Vertical Step ◽  
Forming Angle

Incremental sheet forming (ISF), based on the ‘layered manufacturing’ principle of rapid prototype manufacturing technology, is an innovative and highly flexible technology for forming complex shaped parts without the need for costly dies. This paper presents a numerical investigation on the influence of forming process parameters by modeling the forming process. ANSYS/LS-DYNA has been used for the simulation. The results of study show that small vertical step size can improve the accuracy of the forming. Moreover, large forming angle can increase plastic strain and the four screwdown point optimization paths is an effective method to increase the accuracy of the formed sheet.

Pt Hillock Formation and Decay

1994 ◽  
Vol 361 ◽  
Author(s):  
Scott R. Summerfelt ◽  
Dave Kotecki ◽  
Angus Kingon ◽  
H.N. Al-Shareef
Keyword(s):  
Surface Roughness ◽  
Electron Beam Evaporation ◽  
Dielectric Thickness ◽  
Force Microscopy ◽  
Si Substrates ◽  
Atomic Force ◽  
Hillock Formation ◽  
Roughness Analysis ◽  
High Dielectric

ABSTRACTThe formation of Pt hillocks during high temperature processing is a problem when using Pt as a bottom electrode for high dielectric constant materials. The hillock height is frequently larger than the dielectric thickness, degrading the leakage current of the device. In this work, Pt was deposited by electron beam evaporation on in-situ formed 40 nm ZrO2 coated SiO2 / Si substrates. The samples were then annealed at temperatures between 400°C and 700°C for times ranging from 2 min to 40 min. The surface roughness was measured by atomic force microscopy (AFM). The surface was characterized using Ra, RMS and Zmax over 5 μm × 5μm regions. Zmax is sensitive to hillock formation and Ra is sensitive to changes in general surface roughness. Analysis of Zmax indicates that 100 nm Pt / ZrO2 deposited at 315°C forms hillocks above 450°C during initial heatup. Subsequently, the hillocks decay for temperatures of 600°C and above such that they are almost gone after a 30 min air anneal. In-situ wafer stress measurements of Pt / ZrO2 were performed in O2 at temperatures up to 650°C. The Pt relaxes above 500°C in O2.

Wettability and Surface Roughness Study on RIE Treated Aluminium Deposited Surface

2014 ◽  
Vol 925 ◽  
pp. 101-104
Author(s):  
Vithyacharan Retnasamy ◽  
Zaliman Sauli ◽  
Uda Hashim ◽  
Moganraj Palianysamy ◽  
Aaron Koay Terr Yeow ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Contact Angle ◽  
Factorial Design ◽  
Process Parameters ◽  
Design Of Experiment ◽  
Etch Rate ◽  
Contact Angles ◽  
Atomic Force ◽  
Roughness Analysis ◽  
Full Factorial

Design of Experiment (DOE) is a technique for optimizing process which has controllable inputs and measurable outputs. As a method of DOE, 24 Full Factorial design is used to study the effect of Reactive Ion Etch towards the surface roughness of aluminum pad and effect of the roughness produced towards the contact angle. Surface roughness analysis is done using Atomic Force Microscop (AFM). Contact angle is measured using AutoCad software from the images captured from droplet test. This contact angles must be more than 90° for non-wetting profile or less than 90° for wetting profile. This work is also done to understand the interaction between the process parameters and how each parameters will affect the etch rate. The results are analyzed which shows that the increase in surface roughness produces an increase on the contact angle and vice versa.

The influence of the lubrication in the surface roughness in the incremental sheet forming process

2015 ◽  
Author(s):  
Daniel de Castro Maciel ◽  
Gilmar Cordeiro da Silva ◽  
Luís Henrique Andrade Maia ◽  
Lúcio Flávio Santos Patrício ◽  
Jánes Landre Júnior
Keyword(s):  
Surface Roughness ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Process
Sign in / Sign up

Export Citation Format

Share Document