Ballpoint Pen DFMEA (Design FMEA)

M

Madhusankar

#11
It is very useful, Could you please help me on preparing FMEA on PEN.
Appriciate your help and thanks in advacne
 
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P

pthareja

#13
The pen has been 'searched' for refills several times, over the years and no drying.

the new activity caught my attention.

I have been using Critical success factors and non-acdemic attributes of pen as an instrument and its ball as the critical writing component. I discuss from manufacturing point of view what, how and why the tungsten carbide particles > 10,000 go to make a typical powder metallurgy component, sintered together to like the ink be regulated for a smooth(-ing smooch with the paper) flow.

I taught FMEA and making good use of the nice examples now enthuse me once again to prepare more serious inputs.

Thank you covers!
Priyavrat
 

somashekar

Staff member
Super Moderator
#14
Some of my thoughts about this ballpoint pen which you can perhaps fit in >>>

1. Some ballpoint pens fail to start writing in the first few mm of the writing stroke.
2. Some ballpoint pens start with a dark ink blob at the place where the pen makes contact with the paper, and this does not dry as quickly as the written matter.
3. Some ballpoint pens collect ink at the tip when used for lengthy writing and this in turn at times has the failure effect said at 2., sometimes lets ink at the tip of the body which in turn soils the shirt pocket inside.
4. Some people tend to use a lot of pressure when writing and this result in the crack at the body more at the threads area.
5. Some ballpoint pens do not write as the air vent gets blocked at the end of the pen body /refill.
6. People use the ballpoint pen tip to make a hole in packing BOPP tapes during unpacking, as it is the handiest tool readily available in the pocket.
7. The spring can slip from its stop location making the push on / push off to fail
 
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