Effect of Die Corner Radius and Punch Corner Radius on Wrinkling and Fracture Limits in Deep Drawing of Cylindrical Cup
نویسندگان
چکیده
Wrinkling and fracture are the important defects in deep drawing operation, which can be prevented using blank holding force (BHF) which has to be optimized as lower BHF promotes wrinkles formation and higher BHF promotes fracturing. Hence the limits of wrinkling and fracture have to be established. These limits depend on various tooling and process parameters. In this work the effect of tooling parameters like die corner radius and punch corner radius on wrinkling and fracture limits are investigated using a finite element explicit solver LS-DYNA. Constant BHF is considered for analysis.
منابع مشابه
Investigation of the Effects of Pressure Path and Tool Parameters in Hydrodynamic Deep Drawing
In recent years, hydroforming process has been applied in different industries such as aerospace, automotive and military industries due to its advantages, such as high dimensional accuracy, capability of forming complicated parts and high drawing ratio. Hydrodynamic deep drawing with radial pressure is one type of hydroforming process. In this paper, forming of cylindrical cups in hydrodynamic...
متن کاملMinimization of the Sheet Thinning in Hydraulic Deep Drawing Process Using Response Surface Methodology and Finite Element Method
In most of the sheet forming processes, production of the parts with minimum thickness variation and low required force is important. In this research, minimization of the sheet thinning and forming force in the hydraulic deep drawing process has been studied. Firstly, the process is simulated using the finite element method (FEM) and simulation model is verified using the experimental results....
متن کاملUsing the Taguchi Method for Experimental and Numerical Investigations on the Square-Cup Deep-Drawing Process for Aluminum/Steel Laminated Sheets
The effects of input parameters on the square-cup deep-drawing process for a two-layer aluminum/steel laminated sheet were investigated. Each layer was 0.7 mm thick, and the input parameters covered in the investigation were punch nose radius (PR), die shoulder radius (DR), the clearance between a punch and die (CPD), blank holder force (BHF), and layer arrangement (LA). The effects of the inpu...
متن کاملInvestigation on Forming of Titanium Bipolar Plates Using Micro-stamping Process
Micro-stamping process is one of the most cost-effective methods to manufacture metallic bipolar plates (BPPs). This research investigates the forming of titanium thin sheet as a potential candidate for BPPs in proton exchange membrane fuel cell (PEMFC). In this regard, the process was first simulated using finite element (FE) code Abaqus. Afterward, experimental tests were implemented and the ...
متن کاملEffect of various parameters on Wrinkling with imperfections in Deep Drawing of Cylindrical Cup
Due to limitations of finite element methods and software packages, existing in incorporating the imperfections in to the model. The parametric study of BHF, sheet thickness, die profile radius, punch profile radius, initial yield stress and sheet anisotropy and including imperfections is carried out by the model developed by Ravindra.K.Saxena [1, 2, 3]. The mathematical model is studied and va...
متن کامل