Showing papers on "Methods engineering published in 2017"

Continuous Manufacturing: Definitions and Engineering Principles

Abstract: • Batch manufacturing: All materials are charged before processing and are discharged at the end of processing (example: batch crystallization). • Semi-batch manufacturing: Some materials may be continuously added during processing and discharged at the end (example: air feed during batch fermentation). • Continuous manufacturing: Material is simultaneously charged and discharged from the process (example: flow-through reactor cell). • Quasi-continuous manufacturing: Material is treated in batches, yet removed in defined intervals (example: fluid-batch drying of intermediate batches). • Semi-continuous manufacturing: Like continuous manufacturing, but for a defined time period (example: continuous manufacturing on a campaign basis).

Manufacturing Methods of Foam for U-Value Meters

Abstract: The thesis is dependent upon a manufacturing conundrum of finding the best method of manufacturing for medium run productions. In this case 100 units of foam insulation for the U-Value Meters. These U-Value Meters have been developed at Arcada since 2010 in order to determine how well a wall thermally insulates. This numerical analysis of thermal resistance is known as a U-Value, hence the name U-Value Meter. The meter has been extremely successful both locally and abroad, consequently more metres were required. The construction of the meter revolves around a foam core that holds all the components in place whilst simultaneously thermally insulates those components allowing a measurement to be taken. The aim was therefore “to select a mass manufacturing means for the U-Value Meter’s internal foam with a primary focus on cost and time for 100 units”. Although cost and time were the key criteria, each method was analysed via a SWOT Analysis, an analytical tool for the methods’ Strengths, Weaknesses, Opportunities and Threats, hence “SWOT”. The three manufacturing methods of Milling, Do It Yourself (DIY) and steam Expanded Polystyrene (EPS) were analysed and compared. It was found that for a quantity of 100 no method was outstanding, yet both milling and DIY were appropriate, especially considering the units were made entirely in house at Arcada. Having said that, in the future if more than 200 units are required the best manufacturing method when considering time and money is via steam-expanded polystyrene.

A Classical Method of Optimizing Manufacturing Systems Using a Number of Industrial Engineering Techniques

Abstract: Productivity optimization of a company can significantly increase the company’s output and productivity which can be in the form of corrective actions of ineffective activities, process simplification, and reduction of variations, responsiveness, and reduction of set-up-time which are all under the classification of waste within the manufacturing environment. Deriving a means to eliminate a number of these issues has a key importance for manufacturing organization. This paper focused on a number of industrial engineering techniques which include a cause and effect diagram, to identify and optimize the method or systems being used. Based on our results, it shows that there are a number of variations within the production processes that can significantly disrupt the expected output. Keywords—Optimization, fishbone diagram, productivity,