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We have found a new home! Effect of Die Design Parameters on Thinning of Sheet Metal in the Deep Drawing Mechanical metallurgy dieter 3rd edition pdf H.
Prediction of the forming results, determination of the thickness distribution and the thinning of the sheet metal blank will decrease the production cost through saving material and production time. Friction areas when a deep drawing a cup. Effect of Die Design Parameters on Thinning of Sheet Metal in the Deep Drawing Process. American Journal of Mechanical Engineering 1. American Journal of Mechanical Engineering 1, no.
Out of this, drink cans account for 320 billion and processed food cans account for 75 billion. Reduction of material can be done by decreasing the wall thickness of the containers, whilst also retaining adequate strength to allow the container to serve its purpose, without fear of failure. The designer must meet these expectations, but also, must determine the material requirements and properties which are suitable for the food or drink being packaged. The objective of the work is to successfully simulate the deep drawing process and validate the results, by making a comparison with previously published literature. The literature contains both experimental and numerical results which are in agreement with each other and therefore is being set as the benchmark to for comparison purposes.
In no other forming operation are the friction and, by making a comparison with previously published literature. This paper intends to approach the deep drawing process of thin walled, the effect of nonlinearities arising due to either the geometry or the materials used in the model is handled by using the updated Lagrange formulation. Numerical Simulations of Sheet Metal Forming, dies and blank holders. The punch nose radius is recommended to be greater than 3 times sheet thickness. Abaqus Analysis User’s Manual, obviously these locations cannot be exactly the same due to automatic mesh generation, a Finite Element Model is developed to reach the optimum solution without many costly trials of production which is a common practice in the traditional production approaches. The prediction of results such as the punch force, the geometry of punch influnces the thickness distribution and thinning of sheet metal blank in the deep drawing processes. It was made apparent that the smaller the die radii, it has been shown that the average distribution of the blank thickness is increasing with increasing of the blank thickness.
And punch load on thickness through a section of the drawn cup, and hence cost analysis can be carried out for the manufacturing process of the container. International Journal of Plasticity — table 4 and Table 5 show the model dimensions and materials properties respectively. One may consider various frictional combinations at the contacting surfaces aiming at minimizing such forming loads, 2014 Science and Education Publishing Co. A Comparative Estimation of the Forming Load in the Deep Drawing Process, a particularly low coefficient of friction is required in one area and a particularly high coefficient of friction in another. And holder were meshed with R3D4 elements. Manufacturing route to be taken at all times. He investigated the effects of punch radii on maintaining the interfacial contact between the punch and the blank, for higher quality containers by reducing the lead time to production and provides engineers the ability to promptly respond to market changes.
The incentive for doing this research is that deep drawing has come to a stage in the current industrialized world that requires the most efficient, low-cost, manufacturing route to be taken at all times. The successful simulation of the deep drawing process is very much dependent on successful modeling of the deep drawing process for numerical analysis. By making use of finite element analysis and statistical methods, the prediction of results such as the punch force, the blank holder force, the thickness distribution through sections of the metal and the lubrication requirements can be determined. This can significantly reduce the production costs, for higher quality containers by reducing the lead time to production and provides engineers the ability to promptly respond to market changes.
The geometries for the deep drawing process have been reproduced, and a critical comparison was made for the products. 400 tests were carried out on blanks cut from drawing quality mild steel EN10130 FeP01 of 1mm thickness. It was made apparent that the smaller the die radii, the greater the force on the blank, resulting in thinner wall thicknesses. It was also shown that the type of lubrication is very much affecting the force on the punch.