www.pdfstall.online: Jig and Fixture Design (5th Edition)

File Size: 7.85 Mb

Description

The world’s demand for manufactured goods is growing at a staggering rate. Industry has responded to this demand with many new and sometimes radical ways of producing products. From the evolution of Computer Numerical Control and Computer Aided Manufacturing to today’s modern manufacturing concepts, such as Flexible Manufacturing Systems (FMS), Just In Time (JIT), and Statistical Process Control (SPC), the art of manufacturing has undergone many dramatic changes and advances. These changes have created a dire need for more cost-effective and efficient workholding methods and devices. As more manufacturing companies shift their emphasis toward a zero-parts inventory system to keep costs down and profits up, the need for efficient and cost-effective workholders is becoming increasingly important.

Despite the many advancements and changes in cutting tools, machine tools, and production methods, the basic requirement of holding the workpiece has remained constant. Every part produced must be held while it is machined, joined, or inspected or has any number of other operations performed on it. So, whether the operation requires a simple drill press, a multiple-axes computer, or numerically controlled machining center, the workpiece must be accurately located and securely held throughout the operation. The part, not the process, is the primary consideration in workholding.

Content:-

PREFACE

SECTION I: BASIC TYPES AND FUNCTIONS OF JIGS AND FIXTURES

UNIT 1: PURPOSE OF TOOL DESIGN

UNIT 2: TYPES AND FUNCTIONS OF JIGS AND FIXTURES

UNIT 3: SUPPORTING AND LOCATING PRINCIPLES

UNIT 4: CLAMPING AND WORKHOLDING PRINCIPLES

UNIT 5: BASIC CONSTRUCTION PRINCIPLES

SECTION II: CONSIDERATIONS OF DESIGN ECONOMICS

UNIT 6: DESIGN ECONOMICS

UNIT 7: DEVELOPING THE INITIAL DESIGN

UNIT 8: TOOL DRAWINGS