By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2016-03-16 15:09:00

This blog is written by Dasarathi GV, Director-Applications, Cadem Technologies Pvt. Ltd. 
Cadem makes software products for:
1. Cycle time reduction, CNC programming for CNC turning and milling
2. CNC machine monitoring and DNC
3. CNC skill development and education.

CNC

Insert names – ISO nomenclature

Inserts, those SMALL things that we use to cut material, have a BIG impact on our shop’s
profitability. It makes sense to know them, and to make it easy for us to know them, they
actually have names.

Inserts are known by an ISO naming convention that describes their shape and size. Each alphabet and number in the name signifies an aspect of the insert’s shape or size. E.g., the first
alphabet is the shape, while the last two numbers are the nose radius.

Action point
If you decide the tooling (e.g., if you are a programmer, process planner or industrial
engineer), you have to know the naming convention thoroughly, as well as the logic behind
selecting the shape and size of an insert. See these earlier posts on insert selection:
Positive, Negative inserts
Insert coatings – simple explanation

If you’re a big shot, just learn the meaning of the parameters marked in red in the above picture, to impress the gang

Etc.

Lost baggage at airports – where does it end up?

I saw this sad sight on the baggage carousel in Bangalore airport recently. A suitcase handle
that had got detached from its parent bag, and was going round and round on its own.

I read recently that worldwide, 3 Cr. (30 million ) bags are lost every year. Of these, 95 % are
retrieved by airlines and returned to their owners, which means they were just misdirected (sent to the wrong destination – the passenger going to one and the bag going to another), while 5 % are actually lost. The causes: Not loaded on your aircraft at all, tagging error, someone else taking away your bag thinking its his/hers, mishandling on arrival (like being put on the wrong baggage carousal)..

So what happens if your bag is among the 5 % that are lost forever ? You get a compensation, and the bag ends up unclaimed in some airport. Its contents are either auctioned off (here’s the auction site of IGI Airport, New Delhi) or given to charity.

What’s worse than having your bag disappear into the airline system ? Getting it, but after one
of these happens to it:
– In 2010, a waste pipe burst in London’s Heathrow airport, burying 240 suitcases in human waste.
– Bags on the tarmac in an airport in the US were soaked in jet fuel.
– Some bags caught fire in an airport (again in the US) because they were placed too close to the
engine after unloading.

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