Abstract
Product quality is one of the important aspects in deep drawing practice and the variation in process temperature was claimed to improve the quality. Therefore, in this research, the effect of the heating temperature on the drawability of a circular metal cup has been investigated. Firstly, circular metal cups of aluminium, mild steel and stainless steel were drawn from the blank diameters of 60 mm, 65 mm, and 70 mm. The experiment was conducted at room temperature followed by at 100 °C, 150 °C and 200 °C. The Taguchi method was selected as the design of experiment approach, and L9 (34) array design methodology was adopted in this experimental research. The drawability was measured based on the punching force needed to deform the sheet metal blanks. The deep drawing process was conducted at room, and elevated temperature conditions and the response factor was analysed and compared through the analysis of variance (ANOVA) statistical approach. The results obtained from ANOVA indicate that the blank material has a significant influence on the deep drawing process followed by the blank size, heating temperature and heating technique. The optimal parameter combinations are blank diameter of 60 mm, heating temperature of 200 °C and the die and punch heating technique. Out of the three materials investigated, aluminium has a better drawability compared to mild steel and stainless steel.
Highlights
Sheet metal forming is a widely applicable process in manufacturing industries to form sheet metal into designed shapes through mechanical action
The results obtained from analysis of variance (ANOVA) indicate that the blank material has a significant influence on the deep drawing process followed by the blank size, heating temperature and heating technique
4, 7 and 8 experience a reduction in the maximum from room it is observed that only experimental runs 4, 7 and 8 experience a reduction in the maximum punching force from room temperature to the elevated temperature condition, while the highest temperature to the elevated temperature condition, while the highest maximum punching force was maximum punching force was recorded in experimental run 9 at the elevated temperature recorded in experimental run 9 at the elevated temperature condition
Summary
Sheet metal forming is a widely applicable process in manufacturing industries to form sheet metal into designed shapes through mechanical action. Deep drawing is one of the sheet metal forming methods, where the sheet metal is formed into a three-dimensional shape through the mechanical action of a die forming the metal around a punch [1]. This method is capable of producing precise and intricate parts, including both symmetrical and asymmetrical parts. There is a need for optimization and process improvement for deep drawing [2]. One of the process improvement approaches is to conduct the deep drawing at elevated temperatures to improve the formability of the drawn cup in term of punching force.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
