Single Point Incremental Forming can be used to form hole flanges in automobile and aerospace app... more Single Point Incremental Forming can be used to form hole flanges in automobile and aerospace applications. In hole flanging using single point incremental forming, a study on effect of feed and step depth on formability has been carried out. Hole flange thickness is taken as formability criterion. Moreover, effect of those parameters on surface roughness has also been studied to understand effect of Single Point Incremental Forming. The results obtained by experimental work were analyzed and are presented here.
Nirma University Journal of Engineering and Technology, 2016
Lean manufacturing deals with a manufacturing process improvement based on the fundamental goal o... more Lean manufacturing deals with a manufacturing process improvement based on the fundamental goal of Toyota production system in order to minimize or eliminate waste while maximizing production flow. Today in a highly competitive local and global market, it is very much crucial to satisfy the changing demand of the customers. Thus, in today’s manufacturing industry there is an increased focus to produce the right product at right time. The prime objective of this paper to apply a significant lean manufacturing tool know as Value Stream Mapping (VSM). To fulfil this objective a fundamental principles of lean were implemented and VSM was generated to analyse the production flow at an automotive industry and improve the current operating condition to overcome the difficulties with current state of work through time study, Takt time calculation, modifying work cell layout. And based on the future state of VSM, final results showed that by implementing this lean techniques, Production Lead...
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2020
Incremental sheet forming process has developed the interest of researchers in the field of sheet... more 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.
Incremental sheet forming is one of the latest processes in sheet metal forming industry which ha... more Incremental sheet forming is one of the latest processes in sheet metal forming industry which has drawn attention of various researchers. It has shown improved formability compared to stamping process. Single Point Incremental Forming (SPIF) process requires only hemispherical tool and no die is required hence, it is a die-less forming process. In this paper experimental investigation on SPIF for Aluminium sheet has been presented. A groove test on Vertical Machining Centre has been performed. Factors (Step depth, Blank holder clamping area, Backing plate radius, Program strategy, Feed rate and Tool diameter) affecting the process are identified and experiments are carried out using fractional factorial design of experiments. Effect of the factors on fractured depth, forming time and surface finish have been analyzed using Minitab 17 software.
In the present paper, finite element analysis of the knee joint is performed for stress and strai... more In the present paper, finite element analysis of the knee joint is performed for stress and strain estimation of the knee joint for osteoarthritis patients. Osteoarthritis (OA), called the wear and tear arthritis is commonly occurring arthritis wherein a gradual loss of cartilage from the joints are observed. This leads to the joint bones rubbing quite close against one another with less amount of shock-absorbing done by the cartilage causing pain, stiffness, swelling, decreased movability and bone spur formation can be observed. It is mostly observed in patients above 45 years old, but weight and gender are also some of the factors forcing a quick onset of the disease. Using modelling software Blender, a solid model is made of the bone component, namely tibia, fibula, femur and patella as well as Ligaments and cartilages. Using finite element simulation software, analysis is done to determine the level of stress under various forces on the joint. The knee joint experiences a maximu...
Single Point Incremental Forming can be used to form hole flanges in automobile and aerospace app... more Single Point Incremental Forming can be used to form hole flanges in automobile and aerospace applications. In hole flanging using single point incremental forming, a study on effect of feed and step depth on formability has been carried out. Hole flange thickness is taken as formability criterion. Moreover, effect of those parameters on surface roughness has also been studied to understand effect of Single Point Incremental Forming. The results obtained by experimental work were analyzed and are presented here.
Nirma University Journal of Engineering and Technology, 2016
Lean manufacturing deals with a manufacturing process improvement based on the fundamental goal o... more Lean manufacturing deals with a manufacturing process improvement based on the fundamental goal of Toyota production system in order to minimize or eliminate waste while maximizing production flow. Today in a highly competitive local and global market, it is very much crucial to satisfy the changing demand of the customers. Thus, in today’s manufacturing industry there is an increased focus to produce the right product at right time. The prime objective of this paper to apply a significant lean manufacturing tool know as Value Stream Mapping (VSM). To fulfil this objective a fundamental principles of lean were implemented and VSM was generated to analyse the production flow at an automotive industry and improve the current operating condition to overcome the difficulties with current state of work through time study, Takt time calculation, modifying work cell layout. And based on the future state of VSM, final results showed that by implementing this lean techniques, Production Lead...
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2020
Incremental sheet forming process has developed the interest of researchers in the field of sheet... more 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.
Incremental sheet forming is one of the latest processes in sheet metal forming industry which ha... more Incremental sheet forming is one of the latest processes in sheet metal forming industry which has drawn attention of various researchers. It has shown improved formability compared to stamping process. Single Point Incremental Forming (SPIF) process requires only hemispherical tool and no die is required hence, it is a die-less forming process. In this paper experimental investigation on SPIF for Aluminium sheet has been presented. A groove test on Vertical Machining Centre has been performed. Factors (Step depth, Blank holder clamping area, Backing plate radius, Program strategy, Feed rate and Tool diameter) affecting the process are identified and experiments are carried out using fractional factorial design of experiments. Effect of the factors on fractured depth, forming time and surface finish have been analyzed using Minitab 17 software.
In the present paper, finite element analysis of the knee joint is performed for stress and strai... more In the present paper, finite element analysis of the knee joint is performed for stress and strain estimation of the knee joint for osteoarthritis patients. Osteoarthritis (OA), called the wear and tear arthritis is commonly occurring arthritis wherein a gradual loss of cartilage from the joints are observed. This leads to the joint bones rubbing quite close against one another with less amount of shock-absorbing done by the cartilage causing pain, stiffness, swelling, decreased movability and bone spur formation can be observed. It is mostly observed in patients above 45 years old, but weight and gender are also some of the factors forcing a quick onset of the disease. Using modelling software Blender, a solid model is made of the bone component, namely tibia, fibula, femur and patella as well as Ligaments and cartilages. Using finite element simulation software, analysis is done to determine the level of stress under various forces on the joint. The knee joint experiences a maximu...
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Papers by Prof Bharat Modi