PRODUCTIVITY IMPROVEMENT OF CASTINGS, SWITCHING TO SHELL MOULD PROCESS FROM GREEN SAND MOULD PROCESS

Mould Slag Property Measurements to Characterize Cc Mould – Shell Gap Phenomena

Multi-faceted experiments were conducted to measure the properties of several mould slags needed for the fundamental characterization of heat transfer and friction in the interfacial gap between the shell and mould during the continuous casting (CC) of steel. A novel apparatus was used to measure the friction coefficient between solidified mould flux and copper at elevated temperatures. The mea...

Evaluation and Modification of the Block Mould Casting Process Enabling the Flexible Production of Small Batches of Complex Castings

Improvement of Soft Tooling Process Through Particle Reinforcement with Polyurethane Mould

Use of conventional flexible polymeric mould materials yields to longer solidification time of (wax/plastic) patterns in soft tooling process, thereby reducing the rapidity of the process to a great extent, which is not desirable in present competitive market. In this work, approach of particle-reinforcement with mould materials is introduced to reduce the cycle time of Soft tooling process and...

Process Planning for Reconfigurable Manufacturing System for Mould/Die Making

For efficient manufacture of moulds and dies and in order to meet the unstable market situation, a well organised reconfigurable manufacturing system is required. The geometric features of moulds and dies are not the same as discrete parts. They are contained elements on a block of steel and are usually in the form of contours, slots, corners, slope faces, curved surfaces and cavities. A lot of...

Forward and reverse mappings in green sand mould system using neural networks

The quality of castings in a green sand mould is influenced significantly by its properties, such as green compression strength, permeability, mould hardness, and others, which depend on input parameters. The relationships of these properties with the input parameters, like sand grain size and shape, binder, water, etc. are complex in nature. In the neural network based forward mapping, mould p...