Experimental analysis of electro-pneumatic optimization of hot stamping machine control systems with on-delay timer

Abstract

The sustainability criterion in the manufacturing industries is imperative, especially in the automobile industries. Currently, efforts are being made by the industries to mitigate CO 2 emission by the total vehicle weight optimization, machine utilization and resource efficiency. In lieu of this, it is important to understudy the manufacturing machines adopted in the automobile industries. One of such machine is the hot stamping machine that is used for about 35% of the manufacturing operations within the automobile industries. Therefore, the standardization and optimization of the hot stamping process could reduce the carbon footprint within the automobile industries. This work understudied the on-delay timer functional valve of the hot stamping machine in order to determine various process parameters affecting it. The detailed physical model of the pneumatic and electro-pneumatic cylinder systems for the control is simulated and optimized for both the pneumatic and electro-pneumatic cylinder systems. Experimental and simulation model were established at the FESTO work station and FESTO FluidSIM ® 5.1 respectively to evaluate the effective velocity, accelerations, displacement, and flow rate for the pneumatic and electro-pneumatic actuator on both systems. Comparisons were made between pneumatic and electro-pneumatic cylinder systems on their characteristic curve in order to optimize the process variables. The result favours the electro-pneumatic cylinder systems in stability and in designing hot stamping machines. The result obtained could elucidate the understanding of the pressing arm of a hot stamping machine.

Modelling and Simulation of Automated Hydraulic Press Brake

“…According to Thomas et al [1], a hydraulic press is a machine press which uses hydraulic cylinder to generate a compressive force to perform various pressing operations such as metal forging, punching, stamping, etc. The press provides an efficient means of pushing and pulling, rotating, thrusting and controlling load [2,3]. Some hydraulic press applications include compression moulding, injection moulding, drawing, forging, blanking, coining, clamping, compacting, Forming, pad forming, potting, punching, and stacking, bending, stamping and trimming [4,5].…”

Experimental Study of Double-Acting Pneumatic Cylinder

“…Important contributions to the models of pneumatic actuator control in [8,10], are focused only in position control, ignoring pressure dynamics in the cylinder chambers which affects this position. Tests for measuring friction between the piston and the cylinder body as well as the piston rod and its seals, using potentiometers to measure the position of the piston, have been designed in [4,11]. The use of potentiometers adds momentum, additional friction and noise that affect the results.…”

A two-stage multiproduct EMQ-based model with delayed differentiation and overtime option for common part’s fabrication

“…The authors recognized certain critical issues, such as product integrity, administrative readiness, and operations scheduling, have a greater influence on the postponement implementation. Additional works (Ahranjani & Matin, 2018;Cavusoglu, Cavusoglu, & Raghunathan, 2012;Davis & Sasser, 1995;Oladapo, Balogun, Adeoye, Olubunmi, & Afolabi, 2017;Rushdi, 2019;Sheikh, Komaki, Kayvanfar, & Teymourian, 2019) focused on diverse aspects of implementing the postponement strategies.…”