Tribological behavior of aluminum alloys in a vibratory finishing process

Wear ◽  
2003 ◽  
Vol 255 (7-12) ◽  
pp. 1369-1379 ◽  
Author(s):  
Mohammad Reza Baghbanan ◽  
Akihiro Yabuki ◽  
Roland S. Timsit ◽  
Jan K. Spelt
Keyword(s):  
Aluminum Alloys ◽  
Tribological Behavior ◽  
Vibratory Finishing ◽  
Finishing Process

scholarly journals Predictive Models of Double-Vibropolishing in Bowl System Using Artificial Intelligence Methods

2019 ◽  
Vol 3 (1) ◽  
pp. 27
Author(s):  
Joselito Alcaraz ◽  
Kunal Ahluwalia ◽  
Swee-Hock Yeo
Keyword(s):  
Surface Roughness ◽  
Predictive Modelling ◽  
Surface Finishing ◽  
Configuration Model ◽  
Percentage Error ◽  
Vibratory Finishing ◽  
Exponential Regression ◽  
Finishing Process ◽  
Family Of Curves ◽  
Exponential Regression Model

Vibratory finishing is a versatile and efficient surface finishing process widely used to finish components of various functionalities. Research efforts were focused in fundamental understanding of the process through analytical solutions and simulations. On the other hand, predictive modelling of surface roughness using computational intelligence (CI) methods are emerging in recent years, though CI methods have not been extensively applied yet to a new vibratory finishing method called double-vibropolishing. In this study, multi-variable regression, artificial neural networks, and genetic programming models were designed and trained with experimental data obtained from subjecting rectangular Ti-6Al-4V test coupons to double vibropolishing in a bowl system configuration. Model selection was done by comparing the mean-absolute percentage error and r-squared values from both training and testing datasets. Exponential regression was determined as the best model for the bowl double-vibropolishing system studied with a Test MAPE score of 6.1% and a R-squared score of 0.99. A family of curves was generated using the exponential regression model as a potential tool in predicting surface roughness with time.

Experimental Investigation of Vibratory Finishing Process

2014 ◽  
Author(s):  
Xiaozhong Song ◽  
Rahul Chaudhari ◽  
Fukuo Hashimoto
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Metal Removal ◽  
Contact Forces ◽  
Chemical Solution ◽  
Impact Frequency ◽  
Vibratory Finishing ◽  
Factors Affecting ◽  
Finishing Process ◽  
Chemical Solutions

The vibratory finishing process is widely used for finishing metal components. An experimental investigation is reported on the factors affecting the metal removal and resultant surface roughness during vibratory finishing including the influence of chemical solutions. The effect of process parameters such as media size and impact frequency is studied by measuring the contact forces. A method to investigate the effect of chemical solution and to optimize the processing time to achieve desired resultant surface roughness is presented.

scholarly journals On the Effects of Burnishing Process on Tribological Surface Resistance of Additively Manufactured Steel

2021 ◽  
Author(s):  
Maria Rosaria Saffioti ◽  
Michela Sanguedolce ◽  
Giovanna Rotella ◽  
Luigino Filice
Keyword(s):  
Tribological Behavior ◽  
Surface Characteristics ◽  
Steel Making ◽  
Experimental Campaign ◽  
Plastic Deformation Process ◽  
Finishing Process ◽  
Burnishing Process ◽  
Experimental Findings ◽  
Surface Improvement ◽  
Suitable Process

Burnishing is a Severe Plastic Deformation process having the potential to replace expensive finishing post processes. It is considered a super finishing process due to its results in terms of drastic roughness reduction. Also, additional advantages include the surface integrity improvement functionalized to the specific application. Even though burnishing is widely applied for surface improvement of conventional materials, knowledge about its effect on additively manufactured metals is still limited. This paper aims to fill this gap presenting experiments on roller burnishing on additively manufactured stainless steel in order to improve its tribological performance. The experimental campaign was carried out to find suitable process parameters able to drastically improve the tribological behavior of the final product. In particular, the influence of the burnishing forces on the whole surface quality has been addressed. The overall results demonstrate that the selected burnishing configuration is able to successfully modify the surface characteristics of the steel, making it appropriate for critical applications. Furthermore, the experimental findings allow to conclude that burnishing process can replace a series of post processes needed after additive manufacturing, drastically reducing the time and costs associated to the manufacturing process and meeting Industry 4.0 requirements.

Minimum surface roughness using rule-based modeling of the vibratory finishing process in a high-frequency bowl system

2020 ◽  
Vol 234 (11) ◽  
pp. 1415-1421
Author(s):  
Ben Jin Wong ◽  
Ketav Majumdar ◽  
Kunal Ahluwalia ◽  
Swee-Hock Yeo
Keyword(s):  
First Principles ◽  
High Frequency ◽  
Force Sensor ◽  
Vibratory Finishing ◽  
Microscopy Imaging ◽  
Newtonian Physics ◽  
Mass Finishing ◽  
Finishing Process ◽  
Finishing Processes ◽  
Made In

Previous work on vibratory finishing has led to a better understanding and establishment of the mass finishing processes. Despite the sustained efforts made to date, vibratory finishing remains a field where the findings made have been based largely on empirical evidence. Through force sensor analyses and scanning electron microscopy imaging, in this work a successful attempt has been made in uncovering the underlying science—through first principles of Newtonian physics—behind vibratory finishing, providing explanations for the observations made. Trials were carried out in a high-frequency vibratory bowl, the first of its kind in the vibratory finishing industry. Through these trials, mathematical formulations have been derived, essentially providing a reliable way for the industry to estimate the process cycle time.

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