A5078393657- Advanced machining processes and optimization
- Advanced Machining and Optimization Techniques
- Advanced Surface Polishing Techniques
- Manufacturing Process and Optimization
- Metal Alloys Wear and Properties
- Tunneling and Rock Mechanics
- Injection Molding Process and Properties
- Energy Efficiency and Management
- Lubricants and Their Additives
- Metallurgy and Material Forming
- Adhesion, Friction, and Surface Interactions
- Sustainable Supply Chain Management
- Additive Manufacturing and 3D Printing Technologies
- Life Cycle Costing Analysis
- Erosion and Abrasive Machining
- Quality and Management Systems
- Metal and Thin Film Mechanics
- Engineering Technology and Methodologies
- Quality Function Deployment in Product Design
- Ergonomics and Human Factors
- High Entropy Alloys Studies
- Connective tissue disorders research
- Product Development and Customization
- Tribology and Lubrication Engineering
- Bone fractures and treatments
Indian Institute of Technology Ropar
2015-2021
University of Kentucky
2010-2011
University of Calabria
2011
University of Utah
2005-2009
This paper presents the results of an experimental investigation to determine effects cryogenic coolant on surface integrity in orthogonal machining hardened AISI 52100 bearing steel. Experiments were performed under dry and conditions using chamfered CBN tool inserts. Several techniques used analyzing machined subsurface: optical scanning electron microscopes (SEM) utilized for topography characterization; chemical characterization (phase study) was carried out by means Energy-dispersive...
In machining of hardened materials, maintaining surface integrity is one the most critical requirements. Often, major indicators machined parts are roughness and residual stresses. However, material microstructure also changes on steels this must be taken into account for process modeling. Therefore, in order manufacturers to maximize their gains from utilizing hard finish turning, accurate predictive models needed, which capable predicting both white dark layer formation as a function...
Metalworking fluids are a major cause of health hazards for operators apart from being sources environmental pollution, thus necessitating research in dry and minimum quantity lubrication (MQL) machining. Ionic liquids relatively new family environment-friendly chemicals that have significant potential to be employed as lubricants MQL This paper presents the results preliminary studies which three ionic based on 1-methyl 3-butylimidazolium cation were applied additives vegetable oil...
The material grain size changes significantly during machining of hardened steels, and this must be taken into account for improved modeling surface integrity effects resulting from machining. Grain induced orthogonal cutting AISI 52100 (62 HRC) are modeled using the Finite Element (FE) method; in particular, a user subroutine involving hardness-based flow stress model is implemented FE code empirical models utilized describing phase transformation conditions to simulate formation white dark...
Dry machining is one of the essential steps towards achieving sustainable manufacturing processes. Sustainable dry can be further enhanced by using surface textured cutting tools where micro-capillary networks on tool surfaces are exploited for tribological benefit in absence fluids. This paper presents results an experimental study which rake uncoated carbide at different levels, and orthogonal performed AISI 1045 steel under condition. The show that skewness, kurtosis, other texture...
This article on ‘Micro-machining: An Overview (Part II)’ is in continuation to I)’ published this journal ( Journal of Micromanufacturing). It consists four parts, namely, electrochemical micro-texturing, spark micro-machining, molecular dynamics simulation and sustainability issues micro-machining processes. Electrochemical micro-texturing (ECMTex) deals with various techniques developed for different types workpiece-surfaces, flat, curved free-form surfaces. Here, basically two categories...
Sustainability and economic factors are increasingly pushing industry towards environmentally friendly manufacturing methods. However, the implications of processing level changes, which being introduced at a significant rate, for overall, environmental impact need better characterization. In first half this paper, simplified framework enhancing sustainability in manufacturing, by enabling rapid assessment approximate life-cycle competing process-level alternatives, is introduced. This...
Friction, and consequently heat generation in the cutting zone, significantly affects tool life, surface integrity dimensional accuracy, apart from other machining results. Application of a coolant process can increase life decrease generation, temperatures, reduce roughness amount energy consumed process, thus improve productivity. Furthermore, application also microstructural alterations (i.e., white dark layers) due to operation, which have significant influence on product performance...
The use of Cutting Fluids (CFs) in machining operations is being increasingly questioned recent years for environmental and economic reasons, leading to efforts promoting dry, as well minimal quantity lubricant (MQL), machining. However, the tribological effectiveness thermal aspects CF action at modern cutting conditions, which not only involve relatively high speeds but also advanced tool coatings chip-breaking geometric features, need better understanding. This paper presents an...
A preliminary model for estimating tool-chip friction in orthogonal cutting is proposed which utilizes the asperity deformation of Challen and Oxley [14, 15], coupled with a method to estimate interfacial film formation between tool chip. Thus, approach includes chemical influence machining environment mechanical effects tool's surface roughness. Trends shown by approximately match experimental results. The helps explain observations that using rougher sometimes reduces severity compared...