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(key to improve productivity)
1.Hashim Hasnain Hadi 13ME36
2. Shaheryar 13ME07
B.E Mechanical (8th Semester )
Baluchistan University of Engineering & Technology Khuzdar
Presented By
Outlines
• Introduction
• Definition
• Implementation
• Implementation Phases
• Benefits of Group Technology
Introduction
• Group technology was introduced by Frederick Taylor in 1919 as a way to improve productivity.
• One of long term benefits of group technology is it helps implement a manufacturing strategy aimed at greater automation.
• GT(Group Technology) is a theory of management based on the principle that similar things should be done similarly.
• GT is the realization that many problems are similar, and that by grouping similar problems, a single solution can be found to a set of problems thus saving time and effort.
• GT is a manufacturing philosophy in which similar parts are identified and grouped together to take advantage of their similarities in design and production.
Introduction(Continue)
• Group Technology also known as GT, is a manufacturing technology where similar parts are collectively identified and grouped to use the benefit of their relationship in design and as well as in production.
• The similar parts are grouped to form part families.
• Each and every family has similar design and manufacturing qualities.
• Example: A plant manufacturing 10,000 various parts could be capable to arrange into 30 to 40 part families.
Definition
Group technology (GT) is a manufacturing philosophy that seeks to improve productivity by grouping parts and products with similar characteristics into families and forming production cells with a group of dissimilar machines and processes.
PRESS SHOP
(Cutting, Drilling, Bending, Punching, Notching,
Piercing)
GI
sheet
CRI
sheet
GI
sheet
CRI
sheet
Implementing Group Technology
Where to implement GT?
• Plants using traditional batch production and „process type layout
• If the parts can be grouped into part families
How to implement GT?
• Identify part families
• Rearrange production machines into machine cells
INJECTION MOULDING MACHINE
INJECTION MOULDING MACHINE
• Group technology implementation can be broken down into 3 different phases:
• Actions on the manufacturing process
• Changes to the production process
• Results for the organization
Implementation Phases
Group technology has the following actions on the manufacturing process:
• Part Simplification
• Process Standardization
• Production Control
Implementation Phases (Continue)
The changes group technologies can have on the production process.
• Tighter Parts Control
• Close physical layout of machine groups
• Orderings tied to production
Implementation Phases (Continue)
The results that group technologies have at the organizational level.
• Systematic design and redesign
• High-quality level
• Less process planning time and setup time
Benefits Of Group Technology
Some of the well-known tangible and intangible benefits of implementing GT :
1. Engineering design
• Reduction in new parts design
• Reduction in the number of drawings through standardization
• Reduction of drafting effort in new shop drawings
• Reduction of number of similar parts, easy retrieval of similar functional parts, and identification of substitute parts
Benefits of GT (Continue)
2. Layout planning
• Reduction in production floor space required
• Reduced material-handling effort
3. Specification of equipment, tools, jigs, and fixtures
• Standardization of equipment
• Implementation of cellular manufacturing systems
• Significant reduction in up-front costs incurred in the release of new parts for manufacture
Benefits of GT (Continue)
Manufacturing: production control
• Reduced work-in-process inventory
• Easy identification of bottlenecks
• Improved material flow and reduced warehousing costs
• Faster response to schedule changes
• Improved usage of jigs, fixtures, pallets, tools, material handling, and manufacturing equipment
THERMO-FORMING
Benefits of GT (Continue)
Manufacturing: quality control
• Reduction in number of defects leading to reduced inspection effort
• Reduced scrap generation
• Better output quality
• Increased accountability of operators and supervisors responsible for quality production, making it easier to implement total quality control concepts.