EXPERIMENTAL ANALYSIS AND ISHIKAWA DIAGRAM FOR BURN ON EFFECT ON MANGANESE SILICON ALLOY MEDIUM CARBON STEEL SHAFT
Journal Title: International Journal for Quality Research - Year 2013, Vol 7, Issue 4
Abstract
Burn on/metal penetration is one of the surface defects of metal castings in general and steel castings in particular. A research on the effect of burn on the six ton medium carbon steel shaft for making a roller of cold rolled steel sheet produced at one of the metals industry was carried out. The shaft was cast using sand casting by pouring through riser/feeding head step by step (with time interval of pouring). As it was required to use foam casting method for better surface finish and dimensional accuracy of the cast, the pattern was prepared from polystyrene and embedded by silica sand. Physical observations, photographic analysis, visual inspection, measurement of depth of penetration and fish bone diagram were used as method of results analysis. The shaft produced has strongly affected by sand sintering (burn on/metal penetration). Many reasons may be the case for these defects, however analysis results showed that the use of poorly designed gating system led to turbulence flow, uncontrollable high temperature fused the silica sand and liquid polystyrene penetrated the poorly reclaimed and rammed sand mold as a result of which eroded sand has penetrated the liquid metal deeply and reacted with it, consequently after solidification and finishing the required 240mm diameter of the shaft has reduced un evenly to 133mm minimum and 229mm maximum mm that end in the rejection of the shaft from the product since it is below the required standard for the designed application. In addition, it was not possible to remove the adhered sand by grinding. Thus burn on is included in mechanical type burn on.
Authors and Affiliations
Asmamaw Tegegne, Ajit Pal Singh
Keywords
Related Articles
- EP ID EP218950
- DOI -
- Views 77
- Downloads 0
EXAMINING THE RELATIONSHIP AMONG SERVICE QUALITY, CUSTOMER SATISFACTION AND BEHAVIORAL RESPONSES - COMPARISON BETWEEN PUBLIC AND PRIVATE SECTOR BANKS OF PAKISTAN
This study examines the relationship among service quality, customer satisfaction and behavioral responses across public and private banks in Pakistan. A cross-sectional survey was conducted and data was gathered from 43...
SUPPORT TOOL TO ASSIST THE CHOICE OF SKILLS FOR MAINTENANCE INTERVENTION BASED ON EXPERIMENTAL DESIGN
Industrial maintenance occupies a predominant place in manufacturing companies and it effectively contributes to the improvement and the development of the production tool. However, the major concern of industrialists is...
INVESTIGATING DISCREPANCIES BETWEEN ESERVICES IMPLEMENTING OR NOT ISO 9001: CUSTOMERS’ OUTLOOK IN THE BACKDROP OF ESERVICES IN CATALONIA (SPAIN)
This paper seeks to investigate from customers´ perspective, if the implementation of ISO 9001 with the scope directly related to customers (offices, claims, etc.), spawn any discrepancies on service quality, customer pe...
IMPROVEMENTS IN WOOD THERMOPLASTIC MATRIX COMPOSITE MATERIALS PROPERTIES BY PHYSICAL AND CHEMICAL TREATMENTS
This paper presents a short overview of the developments made in the field of wood thermoplastic composites in terms of surface treatment, flammability, matrix/reinforcement model, properties and application of recycled...
THE GENUINE NEEDS OF CONFERENCE ATTENDEES: AN ANALYSIS BY THE MODERN QUALITY FUNCTION DEPLOYMENT
The primary purpose of this research is to understand the genuine needs of conference attendees regarding conference participation within a multi-dimensional perspective and to identify the priority of those needs via mo...