3.0DrillingHolesInToolSteelUsingCorrectSpeeds,Feed.docVIP

Trade of Toolmaking Module 3: Milling Unit 9: Precision Vee Block Assembly Phase 2 Published by Table of Contents Document Release History 3 Unit Objective 4 Introduction 4 1.0 Manufacturing A Vee Block Assembly To The Specifications On The Drawing 5 1.1 Use Of The Master Vee Block 5 1.2 Geometric And Trigonometrical Ratios: Sine, Cos, Tan Rules Triangles 5 1.3 Precision Machining Of Components 6 1.4 Measurement Of Vee Position And Dimensions: Use Of Precision Rollers To Determine Location And Accuracy 6 1.5 Deburring Of Components, Disposal Of Swarf 6 1.6 First Angle Projection: Sectional Views, Hatching, Dimensioning, Component Parts And Description Lists, Title Blocks 7 2.0 Describing And Using Specific Work Holding Techniques 8 2.1 Specific Work Holding Methods: Safety, Reduction Of Positional Changes During Manufacture 8 3.0 Drilling Holes In Tool Steel Using Correct Speeds, Feed And Techniques 8 3.1 Deep Through Hole Drilling: Symmetry, Application Of Coolant 8 3.2 Appropriate Cutting Feeds And Speeds For Tool Steel 9 3.3 Cutting Stresses And Strains For Tool Steel 9 3.4 Stress Relieving Techniques Used In Manufacturing 9 4.0 Planning And Allocating Grinding Allowances On Components 10 4.1 Job Sequence, Efficient Planning Of Grinding Allowance 10 Summary 11 Suggested Exercises 12 Questions 13 Answers 14 Recommended Additional Resources 15 Reference Books 15 Document Release History Date Version Comments 25/09/2014 2.0 SOLAS transfer Unit Objective On completion of this unit you will be able to mill and measure a vee block, describe specific work holding techniques and drill deep holes in a workpiece. Introduction Module three of this course covers milling. This is the ninth unit in module three and explains how to machine a vee groove in a workpiece, which is done by either tilting head of the machine or by setting up the workpiece in the vice at the required angle. The techniques of drilling deep holes in tool steel are also explain