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Tuesday, October 27, 2020

2020 taps and dies

How to use Taps and die sets in engineering .



What is tap and die used for in Engineering 

Taps and dies are tools used to make screw threads


When would you use a tap for a thread 

after you drill a hole in your metal


Does the hole need to be bigger or smaller , explain why .

you have to use the same size you drilled your hole because 
if it is to small it could bind or break if the hole is too large the threads will be too shallow and may strip out or fail


Find a chart for A METRIC TAPPING THREAD SIZE.


What are the different types of tap ( taper, intermediate,bottom ) explain the difference between them 

f you are tapping a hole that goes through the material then the taper tap is the one to use the other two are to allow you to make a thread down to the bottom of a blind hole

and would be used in turn after starting the thread with the taper tap.


tapping a thread




Wednesday, October 14, 2020

Japan

I learnt that people from Okinawa live really long. The average life expectancy is 83 years old.

Rice is a cultural practice of Japan.Rice is so important in Japanese society that it has been called the essence of the culture. Historically, wet rice cultivation was a labour-intensive task that could not be accomplished easily. As a result, families pooled their labour. More importantly, they also shared their water resources and irrigation facilities.



The population of Japan is 126.5 million

The population of New Zealand is 4.8 million.