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Tribological Behavior in Bulk and Sheet Forming Processes
Published in Kakandikar Ganesh Marotrao, Anupam Agrawal, D. Ravi Kumar, Metal Forming Processes, 2023
Vishal Bhojak, Jinesh Kumar Jain
Table 7.1 demonstrates the different types of lubricants available for the forming process, as well as the most appropriate applicable regions. Lubricant can be applied to the metal sheet manually, by spray, by dip, by rotating roller, or by grease lubrication in the event of deep drawing.
Application of DLC Coatings in Metal Forming
Published in Peerawatt Nunthavarawong, Sanjay Mavinkere Rangappa, Suchart Siengchin, Kuniaki Dohda, Diamond-Like Carbon Coatings, 2023
T. Funazuka, Kuniaki Dohda, N. Mahayotsanun
Sheet forming is a processing method for sheet metal materials that can be broadly classified into bending, deep drawing, punching (shearing), and stretching, as displayed in Figure 7.2. Bending is a processing method in which sheet metal is bent or rounded to various angles to form sheet metal products and parts. In deep drawing, pressure is applied to a metal sheet, squeezing the sheet into concave/container shapes. Deep drawing is a seamless and highly versatile method; it is used to produce a variety of products, such as aluminum cans, ashtrays, and bottle containers. The deep drawing process can be utilized to make industrial products and machine parts due to its capability of forming cylindrical shapes and square cylinders. The shearing process cuts flat sheet metals by using a pair of upper and lower dies. As for stretching, a large sheet is being clamped by the die and blank holder, and gradually stretched by the punch movement.
Sheet Metal Working
Published in Sherif D. El Wakil, Processes and Design for Manufacturing, 2019
Deep drawing involves the manufacture of deep, cuplike products from thin sheet metal. As can be seen in Figure 6.31, the tooling basically involves a punch with a round corner and a die with a large edge radius. It can also be seen that the punch-die clearance is slightly larger than the thickness of the sheet metal. When load is applied through the punch, the metal is forced to flow radially and sink into the die hole to form a cup. This is an oversimplification of a rather complex problem. For the proper design of deep-drawn products as well as the tooling required, we have to gain a deeper insight into the process and understand its mechanics.
Neural networks with dimensionality reduction for efficient springback prediction in deep drawing of multi-material cylindrical cups
Published in Journal of Experimental & Theoretical Artificial Intelligence, 2023
Chun Kit Jeffery Hou, Kamran Behdinan
Deep drawing is a sheet metal forming process used to manufacture cups and channel-shaped products. A thin metal sheet is held by a blank holder and a punch pushes the sheet through a die. Careful consideration must be done when selecting design parameters for deep drawing. Deep drawing failure modes (Nezamaev & Karzhavin, 2020; Takalkar & Chinnapandi, 2018) such as wrinkling, fracture, tool wear, and surface damage occur when improper parameters such as excessive blankholder force or insufficient clearance between the punch and die are used. Several authors have investigated the effects of design parameters on these failure modes (Boher et al., 2005; Candra et al., 2015; Manabe et al., 2021) and others have incorporated new die designs (Jensen et al., 1998; Naranje & Kumar, 2014; Savas & Secgin, 2007) to minimise the likelihood of failure occurrence.
Constrained cohort intelligence using static and dynamic penalty function approach for mechanical components design
Published in International Journal of Parallel, Emergent and Distributed Systems, 2018
Omkar Kulkarni, Ninad Kulkarni, Anand J. Kulkarni, Ganesh Kakandikar
Thinning is the most common defect occurring in the components manufactured by deep drawing process. It is necessary to minimize thinning in order to maintain the quality of the product and further may reduce the production cost of the material and time. The final objective of deep drawing process in particular or of any sheet metal forming process in general is to produce good quality product, hence uniform thickness should be obtained throughout. The thinning minimization of connector in the process of deep drawing is solved by SCI and DCI.
Classification and selection of sheet forming processes with machine learning
Published in International Journal of Computer Integrated Manufacturing, 2018
Elia Hamouche, Evripides G. Loukaides
Deep drawing is one of the most widely used sheet forming processes, especially in the automotive industry. In deep drawing, a flat sheet metal blank is formed into a hollow body open on one side by radially drawing the sheet into a forming die by the mechanical action of a punch (Swift and Booker 2003).