DME-814 Computer Integrated

Manufacturing

DME-814Computer Integrated Manufacturing (3-0)

Fall 2013

• Instructor: Dr Shahid Ikramullah • Office Hrs: 3:00-4:30p.m. • Email: sib786@yahoo.com;

drshahid@smme.nust.edu.pk• Phone #: 051-90856057

DME-814Computer Integrated Manufacturing (3-0)

Fall 2013

• Text: • 1. Principles of Computer Integrated Manufacturing by S

Kant Vajpayee, 1995 Prentice Hall India. Reprinted in 2006.• 2. Automation, Production Systems and Computer

Integrated Manufacturing by Mikell P. Groover, Prentice Hall, 3rd Edition or latest (2007).

• 3. Computer Integrated Manufacturing – From fundamentals to implementation by Alan Weatherall

• 4. Selected papers from research publications.

DME-814Computer Integrated Manufacturing (3-0)

Fall 2013

• Reference Books:• Principles of Automation and Advanced

Manufacturing Systems by K C Jain & Sanjay Jain, Khanna Publishers. First Edition 2004.

DME-814Computer Integrated Manufacturing (3-0)

Fall 2013

• Grading: • Quizzes 10% • Homework & Assignments 10% • 1st Sessional Exam15%• 2nd Sessional Exam 15% • Final Exam 50%

DME-814Computer Integrated Manufacturing (3-0)

Fall 2013

• Quiz: 5-15 mins each• Assignments: To be submitted on the date

decided

Computer Integrated Manufacturing

• Information about students• Name• Where are you from?• Why are you here?• What do you want to get from this class?

Module # 1General Introduction & Analysis

of Manufacturing Systems

Lecture # 1

• Importance of CIM.• Business Perspectives for CIM• Business Characteristics of CIM systems• Quantifying Benefits

Introduction

Computer integrated manufacturing has been described as everything from an intangible philosophy to a specific CNC program. Further complicating the process of arriving at a consensus for the conceptualization of the term, is the issue of where in the organization CIM resides. Is it a management tool, a planning tool? Is it a production floor activity? Or does CIM somehow fit into an enterprise resource planning (ERP) model?

IntroductionSome see CIM as an integration tool, a tool which uses information and automation hardware and software for production control and management. This school of thought views CIM as a total integrative tool for the organization, one which has the ability to increase productivity, quality and competitive advantage.

IntroductionAnother organizational perspective of CIM is that of a "management technology that makes feasible the fully-automated factory-of-the-future." With this perspective, CIM allows the organization to fully integrate and control all design and manufacturing functions.

Synonyms

• CIE - computer integrated enterprise• CIME - computer integrated manufacturing

enterprise • CIM means many different things to many

different people.

IntroductionAn attempt to define CIM is analogous to a group of blind people trying to describe an elephant by touching it; each has a different description depending upon the body part touched. Thus, several definitions of CIM have been attempted. The one put forward by Shrenker for the Computer and Automated Systems Association of the Society of Manufacturing Engineers (CASA/SME) is perhaps the most appropriate.

IntroductionAccording to him “CIM is the integration of the total manufacturing enterprise through the use of integrated systems and data communications coupled with new managerial philosophies that improve organizational and personnel efficiency”

Introduction• CIM Wheel

Introduction-CIM Wheel

CIM Wheel• 1985 -The Computer and Automated Systems

Association of the Society of Manufacturing Engineers (CASA/SME) published its vision of enterprise-wide teaming--the CIM Enterprise Wheel.

• 1992 -New Manufacturing Enterprise Wheel. This updated vision preserves the understanding gained from the previous CIM Enterprise Wheel. The old Wheel looked primarily at automation and integration inside the enterprise. The new Wheel looks outside as well. It adds understanding in these six areas:

CIM Wheel• The central role of a customer-oriented mission and

vision to strive for continuous improvement. • The importance of teams and human networking in the

new manufacturing environment. • The continuing importance of computer tools, now

increasingly distributed and networked. This includes tools to support networking and concurrent engineering.

• A focus on key processes and best practices throughout the enterprise, from marketing through design, manufacturing, and customer support.

• Recognition of the move away from bureaucratic structures, to leaner and more agile organizations.

• The need to integrate an understanding of the external environment, including customers, competitors, suppliers, and the global manufacturing infrastructure.

CIM Wheel• The new Manufacturing Enterprise Wheel describes six

fundamental elements for competitive manufacturing: • The central role of the customer and evolving customer

needs. • The role of people and teamwork in the organization. • The revolutionary impact of shared knowledge and

systems to support people and processes. • Key processes from product definition through

manufacturing and customer support. • Enterprise resources (inputs) and responsibilities

(outputs).

Introduction

• Evolution of CIMPrimary factors leading to CIM development:

• Development of NC• Cost effective computers• Manufacturing Challenges• Capability-to-Cost attractiveness of micro-

computers

Introduction• Why CIM? (Business Perspective)– To meet competitive pressures– To coordinate and organize data– To eliminate paper and the cost associated

with it– To automate communication within a facility

and increase its speed– Because of the advent of Personal computers

External Challenges

Traditionalcompetition Supplier

Costs ofmoney

Globaleconomy

Customers

New/nichemarket entrants

Introduction

• Objectives for Business Perspective– Market Share– Technology Leadership– Product and Process Quality– Low cost products– Good Employer– Community Involvement– Profit– Customer Relationship

Lecture # 2

• Quantifying Benefits• Research Paper (CIM: Challenges and

barriers to implementation)

Business Characteristics of CIM System

• Cycle of activities in computer integrated system

Purchasing

Outside suppliers

Forecasting

Production planning

Master production schedule

Material requirements

planning

Capacity requirement planning

Shop floor control

Production and assembly

Sales & Marketing

Design engineering

Process planning

Engineering & manufacturing data

base

Inventory management

Shipping and warehousing

Quality controlC

u s

t o

m e

r s

Introduction

• Benefits of CIM– Tangible– Intangible

Lecture # 3

• Research Paper (CIM: Challenges and barriers to implementation)

• Productivity Improvement through Computer Integrated Manufacturing in Post WTO Scenario