Download Improving Productivity and Quality of a Transformer Production Line by Applying Lean PDF

TitleImproving Productivity and Quality of a Transformer Production Line by Applying Lean
LanguageEnglish
File Size4.2 MB
Total Pages156
Document Text Contents
Page 1

Improving Productivity and Quality of a Transformer Production Line by Applying Lean

Manufacturing Principles

By

Robert Johnson

April, 2015



Director of Thesis: Dr. Kanchan Das

Major Department: Department of Technology



Abstract:

The objective of this research is to study a production line and apply Lean principles and

tools to resolve quality problems and improve productivity. The production line selected

for the study is the medium voltage line in ABB Group’s Medium Voltage Products facility

located in Pinetops, North Carolina. The production line was unable to achieve the desired

production rate due to several reasons, including flow, work methods, constraints, rework,

scrap, inventory, and storage arrangement.

One of the major improvements made during the project was to study the production flow

data and balance the assembly process. After balancing the assembly line, single-piece flow

was implemented to increase efficiency. Other major improvements made were to the

Hydrophobic Cycloaliphatic Epoxy casting process and the winding process by reducing

changeover times, and reducing worker idle times. Some of the Lean techniques that were

used during the project were: value stream mapping, process flow diagrams, standardizing

Similer Documents