Lathe Resources
Collection of videos showing the basic operations on the lathes. Our lathes may look different than the ones in the video but the concepts are the same.
These videos are not a replacement for in class demonstrations. DO NOT USE MACHINES UNTIL YOU HAVE HAD A TEACHER DEMO AND RUN THROUGH SAFE OPERATION PROCEDURES!
Most of the time we have a similar order of operations depending on the project. Usually the go something like this:
1) Install material in chuck with less an than inch protruding
2) Face material
3) Center drill material so it may accept a live center
4) Reposition material in chuck so it extends from the chuck and support with live center
5) Machine outer diameters
6) etc
These videos are not a replacement for in class demonstrations. DO NOT USE MACHINES UNTIL YOU HAVE HAD A TEACHER DEMO AND RUN THROUGH SAFE OPERATION PROCEDURES!
Most of the time we have a similar order of operations depending on the project. Usually the go something like this:
1) Install material in chuck with less an than inch protruding
2) Face material
3) Center drill material so it may accept a live center
4) Reposition material in chuck so it extends from the chuck and support with live center
5) Machine outer diameters
6) etc
lathe_theory_101_student Assignment.docx | |
File Size: | 85 kb |
File Type: | docx |
Before starting your first lathe project grab this textbook (Machining Fundamentals by John R. Walker) beside the computer area and start getting familiar with the terminology we will be using with this machine. (This is also part of the student worksheet)
Chapter 13. The lathe. Starting at Page 201 Terms: Include definitions of these terms with your first Lathe Theory Assignment Below!
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Questions to answer before you get to start using the machine! FULL SENTENCE ANSWERS! You can find the FULL Word DOC file here if you lost your paper
1) The Lathe operate on the principle of:
a. The cutter revolving against the work.
b. The cutting tool, being controllable, can be moved vertically acros the work.
c. The work rotating against the cutting tool, which is controllable.
d. All of the above.
e. None of the above
2) Explain the purpose of the WAYS on the lathe bed
3) The carriage supports and controls the cutting tool. Describe each of the following parts.
a. Saddle
b. Cross-slide
c. Compound rest
d. Tool Post
4) Accumulated metal chips and dirt are cleaned from the lathe with a ____________, never with ____________.
5) Which of the following actions are considered dangerous when operating a lathe? (you may choose more than one answer....)
a. Wearing eye protection
b. Wearing loose clothing and jewelry
c. Measuring with work rotation
d. Operating lathe with most guards in place
e. Using compressed air to clean the machine.
6) In most lathe operations you will be using a single-point cutting tool made of __________
(hint.... in our shop it may be different than the textbook.... maybe ask your teacher.....)
7) What does cutting speed indicate?
8) Most work is machined while supported by one of four methods. List them!
17) Sketch a correctly drilled center hole
18) When using the parting too, the spindle speed of the machine is about _________ the speed used for conventional turning.
19) There are many safety precautions that must be observed when operating the lath. List what you consider the five most important.
a. The cutter revolving against the work.
b. The cutting tool, being controllable, can be moved vertically acros the work.
c. The work rotating against the cutting tool, which is controllable.
d. All of the above.
e. None of the above
2) Explain the purpose of the WAYS on the lathe bed
3) The carriage supports and controls the cutting tool. Describe each of the following parts.
a. Saddle
b. Cross-slide
c. Compound rest
d. Tool Post
4) Accumulated metal chips and dirt are cleaned from the lathe with a ____________, never with ____________.
5) Which of the following actions are considered dangerous when operating a lathe? (you may choose more than one answer....)
a. Wearing eye protection
b. Wearing loose clothing and jewelry
c. Measuring with work rotation
d. Operating lathe with most guards in place
e. Using compressed air to clean the machine.
6) In most lathe operations you will be using a single-point cutting tool made of __________
(hint.... in our shop it may be different than the textbook.... maybe ask your teacher.....)
7) What does cutting speed indicate?
8) Most work is machined while supported by one of four methods. List them!
17) Sketch a correctly drilled center hole
18) When using the parting too, the spindle speed of the machine is about _________ the speed used for conventional turning.
19) There are many safety precautions that must be observed when operating the lath. List what you consider the five most important.
Other important parts of the book to read!
Chapter 15. Other Lathe operations. Starting on page 261
15.1 Page 241 - Boring on a lathe
15.2 Page 263 - Drilling and Reaming on a Lathe
15.3 Page 265 - Knurling on a lathe (makes that cool gritty looking texture)
15.4 Page 267 - Filing and Polishing on a Lathe
15.6 Page 270 - Mandrels
15.1 Page 241 - Boring on a lathe
15.2 Page 263 - Drilling and Reaming on a Lathe
15.3 Page 265 - Knurling on a lathe (makes that cool gritty looking texture)
15.4 Page 267 - Filing and Polishing on a Lathe
15.6 Page 270 - Mandrels
Awesome Video series by "Blondihacks" on Youtube. If you are waiting for a demo on a specific operation please check out these videos! These videos are not a replacement for in-class shop demonstrations but should help to familiarize yourself with the operations and vocabulary!
Theory
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Tool Bits
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Facing
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Tail support
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Turning
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Chatter. Bad finish and bad noises?!
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Turning to a shoulder
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Concentricity
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Four-jaw Chucks
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Drilling
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Indicators (basicially measuring stuff)
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Surface Finish
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How to pick metal
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Deburring
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Parting
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