Decision rules for energy consumption minimization during material removal process in turning

2017 ◽  
Vol 140 ◽  
pp. 1819-1827 ◽  
Author(s):  
Qianqian Zhong ◽  
Renzhong Tang ◽  
Tao Peng
Keyword(s):  
Energy Consumption ◽  
Material Removal ◽  
Decision Rules ◽  
Removal Process

scholarly journals Optimization of Laser Engraving of Acrylic Plastics from the Perspective of Energy Consumption, CO2 Emission and Removal Rate

2021 ◽  
Vol 5 (3) ◽  
pp. 78
Author(s):  
Mohammad Muhshin Aziz Khan ◽  
Shanta Saha ◽  
Luca Romoli ◽  
Mehedi Hasan Kibria
Keyword(s):  
Energy Consumption ◽  
Production Rate ◽  
Material Removal Rate ◽  
Material Removal ◽  
Removal Rate ◽  
Scanning Speed ◽  
Gas Emissions ◽  
Laser Engraving ◽  
Co2 Gas ◽  
Optimal Set

This paper focuses on optimizing the laser engraving of acrylic plastics to reduce energy consumption and CO2 gas emissions, without hindering the production and material removal rates. In this context, the role of laser engraving parameters on energy consumption, CO2 gas emissions, production rate, and material removal rate was first experimentally investigated. Grey–Taguchi approach was then used to identify an optimal set of process parameters meeting the goal. The scan gap was the most significant factor affecting energy consumption, CO2 gas emissions, and production rate, whereas, compared to other factors, its impact on material removal rate (MRR) was relatively lower. Moreover, the defocal length had a negligible impact on the response variables taken into consideration. With this laser-process-material combination, to achieve the desired goal, the laser must be focused on the surface, and laser power, scanning speed, and scan gap must be set at 44 W, 300 mm/s, and 0.065 mm, respectively.

scholarly journals Experimental Investigation of Productivity, Specific Energy Consumption, and Hole Quality in Single-Pulse, Percussion, and Trepanning Drilling of IN 718 Superalloy

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4610 ◽  
Author(s):  
Shoaib Sarfraz ◽  
Essam Shehab ◽  
Konstantinos Salonitis ◽  
Wojciech Suder
Keyword(s):  
Experimental Investigation ◽  
Energy Consumption ◽  
Specific Energy ◽  
Material Removal ◽  
Specific Energy Consumption ◽  
Single Pulse ◽  
Laser Drilling ◽  
Fibre Laser ◽  
Hole Quality ◽  
Multi Objective

Laser drilling is a high-speed process that is used to produce high aspect ratio holes of various sizes for critical applications, such as cooling holes in aero-engine and gas turbine components. Hole quality is always a major concern during the laser drilling process. Apart from hole quality, cost and productivity are also the key considerations for high-value manufacturing industries. Taking into account the significance of improving material removal quantity, energy efficiency, and product quality, this study is performed in the form of an experimental investigation and multi-objective optimisation for three different laser drilling processes (single-pulse, percussion, and trepanning). A Quasi-CW fibre laser was used to produce holes in a 1 mm thick IN 718 superalloy. The impacts of significant process parameters on the material removal rate (MRR), specific energy consumption (SEC), and hole taper have been discussed based on the results collected through an experimental matrix that was designed using the Taguchi method. The novelty of this work focuses on evaluating and comparing the performance of laser drilling methods in relation to MRR, SEC, and hole quality altogether. Comparative analysis revealed single-pulse drilling as the best option for MRR and SEC as the MRR value reduces with percussion and trepanning by 99.70% and 99.87% respectively; similarly, percussion resulted in 14.20% higher SEC value while trepanning yielded a six-folds increase in SEC as compared to single-pulse drilling. Trepanning, on the other hand, outperformed the rest of the drilling processes with 71.96% better hole quality. Moreover, optimum values of parameters simultaneously minimising SEC and hole taper and maximising MRR are determined using multi-objective optimisation.

scholarly journals Observation of Material Removal Process by Single Discharge in Air Gap

Procedia CIRP ◽  
2018 ◽  
Vol 68 ◽  
pp. 276-279 ◽  
Author(s):  
Tani Takayuki ◽  
Yoshiki Tsujita ◽  
Hiromitsu Gotoh ◽  
Masaaki Okada ◽  
Naotake Mohri
Keyword(s):  
Material Removal ◽  
Air Gap ◽  
Removal Process ◽  
Single Discharge

Combined energy consumption and CO2 capture management: Improved acid gas removal process integrated with CO2 liquefaction

Energy ◽  
2021 ◽  
Vol 215 ◽  
pp. 119032
Author(s):  
Jianjun Chen ◽  
Hon Loong Lam ◽  
Yu Qian ◽  
Siyu Yang
Keyword(s):  
Energy Consumption ◽  
Co2 Capture ◽  
Acid Gas ◽  
Removal Process ◽  
Gas Removal
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