Mechanisms - Animations

 

https://www.youtube.com/watch?v=0QycWhQceQQ

Springs

Important types of springs

Helical compression or tension springs

Helical torsion springs

Spiral springs

Leaf springs

Belliville springs


End connections for compression springs

Plain
Ground
Squared
Squared and ground


Spring ends for tension springs

Full loop
Small eye
Plain square cut ends
Long round end hook
V hook

Separate spring ends

3 different types were given as figures in the book.

Milling Machine Operations - 1

Speeds and Feeds of Milling Cutters


How To Calculate Speeds and Feeds (Metric Version) - Haas Automation Tip of the Day

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How to calculate speeds and feeds. You get the formulas and a step-by-step method for doing the calculations. You  also get an explanation of each term and some great animations to tie it all together. 

Materials - Manufacturing Processes for Design Subject

1. Introduction
2. General Considerations
3. Mechanical Properties of Materials of Construction
4. Determination of Mechanical Properties
5, Processing Methods - Hot Working Processes

Lathe Machine Operations - 1

Essential Machining Skills: Working with a Lathe, Part One

It is an MIT Video

Open Source Machine Tools
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The video starts with explaining the parts of a lathe machine.

Interesting way of cutting keyway on lathe

How to make KEYWAY on the LATHE
Made in Poland
Published on 27 Feb 2019

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A fixture to hold the shaft on tool holder is made. The milling cutter is placed in the head stock and and the shaft is moved on the tool holder. The keyway is made in a simple way. But making the fixture is interesting. Making the fixture was also shown in the video.

CNC Machine Lathe Working Complete Crankshaft 

Technology Making An Aerospace Component
LA Machines
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The component having multiple diameters, spirals etc.

Machining a Cube on a Lathe

machiningmoments

Happy to come across this video. We did this for our graduate project 40 years back.
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https://www.youtube.com/watch?v=-2ygW0fSnjg

Somebody commented
My father was taught to be a machinist in the Navy before WW II, his final test was a cube accurate to ± 0.001 using only a lathe.


Attachments are less costly to buy and do an operation when the utilization of full machine will be low.

TOOL POST GRINDER ATTACHMENT TO LATHE

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THE VIDEO DEMONSTRATES THE USE OF 8" DIA WHEEL TOOL POST GRINDER  ATTACHMENT MOUNTED ON A 6FT PATHAK BRAND LATHE MACHINE.
Uploaded by PATHAK - THE MACHINERY PEOPLE

Machine Tools and Machining Operations

From S.B. Mathur, A Course in Mechanical Engineering (Conventional & Objective)

Lathe

Shaper

Planer

Slotter

Milling Machine

Drilling Machines

Boring Machines

Grinding

Gear Manufacturing





Lathe

Lathe Operations

1. Turning
2. Taper turning
3. Thread cutting
4. Chamfering
5. Knurling
6. Facing
7. Grooving
8. Forming
9. Filing
10. Polishing
11. Reaming
12. Drilling
13. Boring

Shaper

Planer

Slotter

Milling Machine

Milling Machine Operations

Peripheral Milling
  UpMilling
  DownMilling

Face Milling
End Milling

Plain Milling
Side Milling
Straddle Milling
Gang Milling
Profile Milling
Form Milling

Thread Milling
Cam Milling
Helical Milling
Gear Cutting
Saw Milling

Drilling Machines

Drilling Machine Operations

Drilling
Reaming
Boring
Counter Boring
Countersinking

Boring Machines

Grinding


Types of Grinding

1. Rough or non-precision grinding
2. Precision grinding

Kinds of Precision Grinding

1. External cylindrical grinding
2. Internal cylindrical grinding
3. Surface grinding
4. Form grinding

Gear Manufacturing

Different Methods

Formed Cutter Method

Templet Method

Generating Methods


Updated  21 April 2019, 18 April 2019

Welding Handbook - American Welding Society - 10th Edition

Welding Handbook - American Welding Society - 10th Edition

Table of Contents
PART I — THE SCIENCE OF WELDING, CUTTING, AND ALLIED PROCESSES
CHAPTER 1 – SURVEY OF JOINING, CUTTING, AND ALLIED PROCESSES
Introduction
Joining Processes
Resistance Welding
Cutting Processes
Thermal Spraying
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 2 – PHYSICS OF WELDING AND CUTTING
Introduction
Fusion and Solid-State Welding
Energy Sources for Welding
Arc Characteristics
Metal Transfer
Melting Rates
Physical Properties of Metals and Shielding Gases
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 3 – HEAT FLOW IN WELDING
Introduction
Fundamentals of Heat Flow
Quantitative Calculation of Heat Transfer in Fusion Welding
Conduction of Heat during Fusion Welding
Convective Heat Transfer in the Weld Pool
Relative Importance of Conduction and Convection
Heat Flow in Dissimilar Welding
Heat Flow in Solid-State Welding
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 4 – WELDING METALLURGY
Introduction
Physical Metallurgy
Metallurgy of Welding
Weldability of Some Commercial Alloys
The Brazed or Soldered Joint
Corrosion in Weldments
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 5 – DESIGN FOR WELDING
Introduction
Connection Design
Basics of Welded Connections
Principles of Connection Design
Economics of Welding
Quality and Connection Design Detailing
Detailing of Welds
Sizing of Steel Welds
Special Conditions
Other Alloys
Examples
Conclusion
Bibliography
PART II — DESIGN CONSIDERATIONS
CHAPTER 6 – SYMBOLS FOR JOINING AND INSPECTION
Introduction
Fundamentals
Weld Symbols
Welding Symbols
Welding Symbols for Specific Weld Types
Brazing Symbols
Soldering Symbols
Nondestructive Examination Symbols
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 7 – RESIDUAL STRESS AND DISTORTION
Introduction
Fundamentals
Nature and Causes of Residual Stress
Effects of Residual Stress
Measurement of Residual Stress in Weldments
Residual Stress Distribution Patterns in Typical Welds
Effects of Welding Sequence on Residual Stress
Residual Stress and Distortion in Welds Made with Different Welding Processes
Computational Weld Modeling
Weld Distortion
Reducing or Controlling Residual Stress and Distortion
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 8 – ECONOMICS OF WELDING AND CUTTING
Introduction
The Cost Estimate
Economics of Welding
Automated and Robotic Systems
Economics of Resistance Spot Welding
Capital Investment in Welding Automation and Robotics
Control of Welding Costs
Economics of Brazing and Soldering
Economics of Thermal Cutting
Conclusion
Bibliography
Supplementary Reading List
PART III — AUTOMATION OF JOINING PROCESSES
CHAPTER 9 – MECHANIZED, AUTOMATED, AND ROBOTIC WELDING
Introduction
Mechanized Welding and Cutting
Automated Welding
Robotic Welding
Planning for Automated and Robotic Welding
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 10 – WELDMENT TOOLING AND POSITIONING
Introduction
Fixtures
Positioners
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 11 – MONITORING AND CONTROL OF WELDING AND JOINING PROCESSES
Introduction
Principles of Monitoring and Control
Sensing Devices
Process Instrumentation
Process Monitoring Systems
Process Control Systems
Monitoring and Control Systems
Conclusion
Bibliography
Supplementary Reading List
PART IV — QUALITY, TESTING STANDARDS, AND METHODS
CHAPTER 12 – WELD QUALITY
Introduction
Defining Weld Quality
Overview of Weld Discontinuities
Discontinuities Associated with Fusion Welding
Discontinuities Associated with Resistance Welding
Discontinuities Associated with the Solid-State Welding Processes
Discontinuities in Brazed and Soldered Joints
Significance of Weld Discontinuities
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 13 – TEST METHODS FOR EVALUATING WELDED JOINTS
Introduction
Testing for Strength
Hardness Testing
Bend Testing
Fracture Toughness Testing
Fatigue Testing
Corrosion Testing
Creep and Rupture Testing
Testing of Thermal Spray Applications
Weldability Testing
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 14 – WELDING INSPECTION AND NONDESTRUCTIVE EXAMINATION
Introduction
Personnel Qualifications
The Inspection Plan
Nondestructive Examination
Metallographic Examination Methods
Inspection of Brazed and Soldered Joints
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 15 – PERSONNEL QUALIFICATION AND CERTIFICATION
Introduction
Welding and Brazing Procedure Specifications
Qualification of Welding and Brazing Procedures
Performance Qualification
Standardization of Qualification Requirements
Conclusion
Bibliography
Supplementary Reading List
CHAPTER 16 – CODES AND OTHER STANDARDS
Introduction
Types of Regulatory Documents
Standards-Developing Organizations and Welding-Related Publications
Guidelines for Participating in International Standards Activities
Conclusion
Supplementary Reading List
PART V — SAFETY AND HEALTH
CHAPTER 17 – SAFE PRACTICES
Introduction
Safety Management
Protection of the Work Area
Personal Protective Equipment
Protection against Fumes and Gases
Safe Handling of Compressed Gases
Protection against Electromagnetic Radiation
Electrical Safety
Fire Prevention and Protection
Explosion Prevention
Process-Specific Safety Considerations
Safety in Robotic Operations
Conclusion
Bibliography
Supplementary Reading List


https://www.aws.org/publications/page/10th-edition-volume-1