Abstract
A hydraulic press is a machine using a hydraulic cylinder to generate a compressive force. The hydraulic press works on Pascal’s principle, which states that the pressure throughout a closed system is constant. Hydraulic presses are commonly used for forging, clinching, moulding, blanking, punching, deep drawings and metal forming operations.200-ton capacity hydraulic frame and cylinder are modelled using Solidworks and analysed by solidworks simulation using finite element analysis. The objective of the project is to optimize the total mass and cost of hydraulic press while assuring adequate stiffness by using honeycomb structure on ram. Honey comb structures allows the minimization of material used to reach minimal weight and minimal material cost by providing high strength without compromising the output quality.
Highlights
Today, the advanced technologies lead to the modifications in the mechanical engineering design, analysis and optimisation of various mechanical devices
The work discusses optimisation design with minimum time and lower cost.[2]. Another new method called novel sensitivity analysis method applied to find the performance of hydraulic press by Zhu et al, this method saves a lot of design time and cost[3].Parmar et al, has done the optimisation of a limited components of 200 Tonhydraulic press,such as top plate, movable plate, and columns the work demonistrate the generation of batch files by CREO and analysis is done using ANSYS for the mentioned components[4].Vinubhai et al.,worked on design and sizing optimization of hydraulic press reduced the weight quite significantly and observed the increase in values of deformation and stress and they
After performing static analysis of the hydraulic press with solid ram and honeycomb ram structure in solidworks simulation, maximum stress values obtained are 83.098N/mm2 and 147.871N/mm2 respectively as shown in Fig.5&6.The maximum stresses induced in the 200 ton hydraulic press is less than the permissible stress of the material,but while considering the factor of safety values we got 1.49 and 2.65 for hydraulic press with honeycomb ram structure and solid slab structure.Here,for hydraulic press with honeycomb ram we got safe factor of safety value is less than permissible values,so design is safe and ready to use,but for hydraulic press with solidslab ram we gotfactor of safety is 2.65(>>1) it is overdesign and not safe
Summary
The advanced technologies lead to the modifications in the mechanical engineering design, analysis and optimisation of various mechanical devices. The compromised solution among these factors leads to the Optimization in every mechanical engineering design.In the recent days hydraulic presses are designed to increase their efficacy, Prabaharan et al, presented the work on the optimisation of 5 ton hydraulic press for cost reduction.
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