Tapping

Last week in the workshop we covered tapping and removing a broken stud. We started by drilling a hole into a piece of steel, then we tapped and and screwed a bolt into it, we then cut the head of the bolt to simulate a broken stud. We began by drilling through the broken stud right the way through, then used an EZ out to remove the broken stud. After this was complete we covered repairing a thread. We drilled out the hole and re-tapped it, we then used a Heli-coil to repair the thread.


Tapping the hole that was drilled.


The bolt with its head chopped off


Drilling through the broken stud.


Using the EZ out to remove the broken stud.


Repairing the thread with the Heli-Coil.

Workshop Tools

Please answer the following questions on common work shop tools (in your E Portfolio). Copy and paste the questions in your E Portfolio and answer below. The CDX on-line text book is a good resource to use click on the link and have a look through, this e text book will have all the answers you need CDX E Text Book for the hand tools questions.

1. What is the name of the hammer most commonly used in Automotive engineering?
Ballpein Hammer

2. What would you typically use one for?
Flattening or Peining a Rivet

3. Why would you use a soft faced hammer?
To prevent damage or scratching to work surfaces

4. What type of hammer would you use to give a really strong blow to a chisel?
Lump Hammer

5. What would you use a mallet for in Automotive Engineering?
A job that requires you to use force to get a bolt/bung in without damaging the surface

6. When would you use a dead blow hammer?
In a small or enclosed environment

7. What can cause a hacksaw blade to clog?
Material is too thick to cut

8. What can happen if the blade is too coarse for the job it is intended for?
The blade will grab the material

9. What should you do before and after using a hacksaw?
Clean the blade, make sure its tight.