UNIT 3 PRESS AND PRESS TOOLS Press and …（第三单元媒体和新闻媒体和工具u2026）.pdf

Press and Press Tools UNIT 3 PRESS AND PRESS TOOLS Structure 3.1 Introduction Objectives 3.2 Press 3.3 Types of Presses 3.4 Main Parts of Typical Power Press 3.5 Specifications of a Press 3.6 Press Tool 3.7 Die Set and its Details 3.8 Methods of Die Supporting 3.9 Classification of Dies 3.10 Important Consideration for Design of a Die Set 3.11 Summary 3.12 Answers to SAQs 3.1 INTRODUCTION Metal forming is one of the manufacturing processes which are almost chipless. These operations are mainly carried out by the help of presses and press tools. These operations include deformation of metal work pieces to the desired size and size by applying pressure or force. Presses and press tools facilitate mass production work. These are considered fastest and most efficient way to form a sheet metal into finished products. Objectives After studying this unit, you should be able to understand  introduction of press tool,  major components of press working system,  different criteria of classification of presses,  different types of presses,  description of important parts of a press,  specifications of a press,  other press working tools, like punch and die,  components of press working system,  different types of die sets, and  design considerations for die set design. 3.2 PRESS A press is a sheet metal working tool with a stationary bed and a powered ram can be driven towards the bed or away from the bed to apply force or required pressure for various metal forming operations. A line diagram of a typical pres is explained in the Figure 2.1 hydraulic system.