Re: Machining Tips From John at Stellar Machine Inc.

I like and used for years most of what is on that website with the exception on tip from March 15.
All you need is a small distraction like someone saying something to you and you can loose your hand when machine starts and you are not ready changing parts.
Jerry


"BottleBob" <bottlbob@xxxxxxxxxxxxx> wrote in message news:Y5adndThjLEIk17VnZ2dnUVZ_oninZ2d@xxxxxxxxxxxxxxxx
To All:

Here are some machining tips culled from the following site:

http://members.aol.com/away2422/2index.html

I tried to pick a few that I haven't seen in amc before.

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1. When you need to cut a precise angle on a part,
set it up in the machine with a protractor and then write a program to follow the angle with an indicator, this way you can bump the part
around while the your machine is indicating.

2. Progressive fixturing? whats that? Thats the
ability to make finished parts, no matter how
many setups are involved, instead of doing the
first operation on a 1000 parts than the 2nd,
3rd, ect....you figure out how to fixture or hold
down parts in sequence so that a finished part is
produced at the end of a cycle, not only does
this save handling time, it also allows you to
detect machining problems before they become a
major headache, it take a lot of extra figuring
but pays off in the long run in a big way!

3. Vertical machining centers work great for
lots of jobs, but the one thing that always
gets in the way is the cutouts that are
sometimes left behind after a machining
operation, sometimes you can bolt thru to
hold them down, other times you can just
mill the cutout away, but the easiest way
around the problem is to just mill clearance
holes, or pockets thru the fixture and leave the
cutouts drop thru.
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--
BottleBob
http://home.earthlink.net/~bottlbob


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