Preface The purpose of this training circular is to provide a better understanding of power-driven machine tools. It also supplements technical manuals in the 9-3400-series covering power-driven machine tools. One of the main objectives is for this public
Mech 221: Computer Pre-Lab Assignments
To help you succeed in this course, there will be pre-lab assignments for every computer lab. The goals of the pre-labs are to reinforce concepts taught in class that will be used in the labs and to introduce any new
Mech 2 Computer Lab Guidelines
The following guidelines apply to all computer labs in Mech 2. For most of MECH 221, 222, and 223, you will complete one computer lab per week.
Software
The computer labs use MATLAB (MECH 221 and MECH 222), Unigraphics NX2 (
MECH 2 Dynamics Formula and Data Sheet
Some Standard Physical Constants:
Acceleration at Sea Level due to Gravity: g = 9.81 m/s 2 . Speed of light: c = 3 10 8 m/s . (Nothing in this course goes that fast, so please check your work if you compute a number
Mech 2 Materials Formula and Data Sheet
Stress, Strain, Poissons ratio, elastic moduli:
=
F , A u , l
=
Fs , A
p=
F , A
=
lateral strain tensile strain
n =
=
w , l
=
V V
= E n ,
= G ,
p = K
F(Fs) = normal (shear) component of force; A = area; u(w) = no
Mech 221 Math Formulae 2010
Trigonometry
sin = o/h cos = a/h tan = o/a sin x tan x = cos x 2 2 sin x + cos x = 1 sin(x) = sin x cos(x) = cos x sin(x + y ) = sin x cos y + cos x sin y cos(x + y ) = cos x cos y sin x sin y eix = cos x + i sin x
h o a
Quadra
Mech 2 Mechanics of Materials Formula and Data Sheet
Some Engineering Material Properties: Property
Youngs Modulus, E Shear Modulus, G Poissons Ratio, Thermal Expansion, Density,
-6
Steel
210 GPa (30 psi x 106) 81 GPa (11.6 psi x 106) 0.30 11x10 /C (6x10
Mech 221 Math Problems from Old Tests, Week #1
Brian Wetton September 20, 2010
Notes: This contains all questions on Mech 221 tests and exams from 200609 on the material on numerical methods from the rst four lectures. Some of this material may appear on
Mech 221 Math Suggested Problems Week #1
Brian Wetton September 21, 2009
Note: Questions #2 and #3 might be a bit tricky. Feel free to ask me or the TA for help with them. 1. Experimental Measurements determine that a function f (x) satises f (0) = 0, f (
Mech 221 Math Problems from Old Tests, Week #2
Brian Wetton September 28, 2010
Notes: This contains all questions on Mech 221 tests and exams from 200609 on the material on direction elds and rst order linear dierential equations. Some of this material ma
Mech 2 Math Suggested Problems Week #2
Brian Wetton September 28, 2010
1. Experimental Measurements determine that a function f (x) satises f (0) = 0, f (1/4) = 1, f (1/2) = 3, f (3/4) = 6 and f (1) = 8. (a) Estimate
1 0
f (x)dx using the Trapezoidal rule
Mech 221: Computer Lab 1
Hand in the solutions to the three questions in the lab at the end of the lab. Success in many kinds of engineering requires skill at numerical approximation. The computer labs this term build this skill. This lab in particular wi
TC 9-524
INDEX
Index - 1
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Index - 3
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Index - 5
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Index - 7
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Index 9
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Index - 12
TC 9-524
Chapter 7
LATHES
The lathe is a machine tool used principally for shaping articles of metal (and sometimes wood or other materials) by causing the workpiece to be held and rotated by the lathe while a tool bit is advanced into the work causing th
TC 9-524 Chapter 1
INTRODUCTION TO THE MACHINE SHOP GENERAL INFORMATION
FORMS, RECORDS, AND REPORTS Accurate records are valuable. Unit officers are responsible for completion of forms, records, and reports. DA Pam 738750 lists records, reports, and autho
TC 9-524
Chapter 2
PROPERTIES, IDENTIFICATION, AND HEAT TREATMENT OF METALS GENERAL
PURPOSE This chapter contains basic information pertaining to properties and identification of metal and heat-treating procedures used for metals. For more specific inform
TC 9-524
Chapter 3
PORTABLE MACHINE TOOLS
The portable machine tools identified and described in this chapter are intended for use by maintenance personnel in a shop or field environment. These lightweight, transportable machine tools, can quickly and eas
TC 9-524 Chapter 4
DRILLING MACHINES GENERAL INFORMATION
PURPOSE This chapter contains basic information pertaining to drilling machines. A drilling machine comes in many shapes and sizes, from small hand-held power drills to bench mounted and finally flo
TC 9-524
Chapter 5
GRINDING MACHINES
Grinding is the process of removing metal by the application of abrasives which are bonded to form a rotating wheel. When the moving abrasive particles contact the workpiece, they act as tiny cutting tools, each partic
TC 9-524
Chapter 6
SAWING MACHINES GENERAL
PURPOSE The sawing machine is a machine tool designed to cut material to a desired length or contour. It functions by drawing a blade containing cutting teeth through the workpiece. The sawing machine is faster a
TC 9-524 Chapter 8
MILLING OPERATIONS
Milling is the process of machining flat, curved, or irregular surfaces by feeding the workpiece against a rotating cutter containing a number of cutting edges. The milling machine consists basically of a motor driven
TC 9-524 Chapter 9
MILLING-GRINDING-DRILLING AND SLOTTING ATTACHMENT (VERSA-M IL) GENERAL
DESCRIPTION The milling-grinding-drilling and slotting attachment is commonly referred to as a Versa-Mil. It is a compact, portable unit capable of doing many machin
TC 9-524
APPENDIX A
TABLES
A-1
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A-2
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A-3
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A-4
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A-5
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A-6
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A-7
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A-8
TC 9-524 FOR METRIC SIZES: The recommended tap drill size is equal to the outside diameter minus the pitch. Metric tap sizes are desi
TC 9-524 APPENDIX C
FORMULAS SINE BAR OR SINE PLATE SETTING
Sine bars or sine plates usually have a length of 5 inches or 10 inches. These standard lengths are commonly used by the tool maker or inspector. The sine bar or sine plate is used for accurately
TC 9-524
GLOSSARY
ACRONYMS AND ABBREVIATIONS TC - Training Circular TM - Technical Manual AR - Army Regulation DA - Department of the Army RPM - revolutions per minute SAE - Society of Automotive Engineers SFPM - surface feet per minute tpf -taper per foo