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Machining       #: 2754
 Moderated by: NoPower, Mike69, MaDMaXX,
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 Posted: Sat Mar 29th, 2025 03:17 pm
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JAMMAN

Owns A Torsen


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Some of you know, I am a machining geek. I watch dozens of Machining videos a week, read all I can on new machining processes, new machines, strategies and methods, tooling technology.

I'm an old man but still working as a programmer for a job shop with 7 X 5 axis machines 8 X 4 axis horizontals, 6 of them with TWP-TCP options giving them a lot of the same capabilities of a 5 axis in a 4 axis platform.

Some of the recent methods in use for 5 axis machines teeter on the fence of "ART" or "Showing Off" while still being efficient and decreasing cycle time.

Machine design and speed in conjunction with controller speed is improving year after year, modern high end machines don't worry about the amount of lines in a program or how many tools it uses. There is not a machine in the building at work with less than 60 tool positions, we have 6 with 133 pots and one with 218 tool pots!

The acceleration/deceleration routines feel the inertia of the table load and adjust automatically. Lead screws are liquid cooled (more like stabilized) giving milling accuracy you previously had to grind to achieve.

I'm going to use this thread to post videos and things I might only find interesting but want to catalog!



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 Posted: Sat Mar 29th, 2025 03:35 pm
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JAMMAN

Owns A Torsen


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This is when we got the first Makino A500Z. Well it wasn't the first just our first though its serial number is VERY low.

We now own 3.



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 Posted: Sat Mar 29th, 2025 03:41 pm
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chris

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There is something very satisfying about a. watching the machine at work, and b. holding a machined piece in your hand.

E.g. my Olympus 593 (Concorde) compressor blade ....



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 Posted: Sun Mar 30th, 2025 05:50 pm
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JAMMAN

Owns A Torsen


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Haven't made one at the current place but programmed and machined a couple hundred at the last place, I even designed a couple. I know absolutely NOTHING about aerodynamics or thermal dynamics it was just guesses from previous wheels I machined, splitter configs, inducer and exducer sizing, dyno results...

AND I did take a couple videos. This is a DMG DMU50



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 Posted: Sun Mar 30th, 2025 07:03 pm
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chris

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I guess that was a turbo blade?

This is a bit bigger.



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 Posted: Tue Apr 1st, 2025 11:18 am
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JAMMAN

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A classic morph between curves to a point path! Nice.



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 Posted: Tue Apr 1st, 2025 12:58 pm
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chris

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Each aerofoil "slice" changes shape and angle of attack from minimum at the root to maximum at the tip. In my day these were made in a spark erosion machine.



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 Posted: Thu Apr 3rd, 2025 12:24 am
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JAMMAN

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We call them "EDM's". 3 basic types, "Sinker" which uses electrodes carved to a shape, "Wire" which uses a thin wire of different diameters depending on application, and "hole popper" which is a fancy electric drilling machine.

I bet yours was done on a wire? 2 ops?



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 Posted: Thu Apr 3rd, 2025 08:10 am
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chris

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Yes, by wire. The machine was ancient! A glass fronted box about 2 foot square and 3 foot high - fascinating to watch it at work.

The base was machined conventionally by mill, drill and tap with the blade roughed out before fitting to the machine for the blade to be finished.

These were developmental test blades for the engine.

I also did some work on the afterburner which was fun!



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 Posted: Sun Apr 13th, 2025 05:44 am
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Undrstm8ed
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Are you pining for work?



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 Posted: Sun Apr 13th, 2025 08:20 pm
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JAMMAN

Owns A Torsen


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Me? No not at all. We are a job shop, quantities between 100 and 5,000 or so. If you have something you need made, you have a model and a drawing with your tolerances we would quote it.

We are doing tons of quotes for companies that used to have things made in China! So they want it in the USA now for the china price. no quote lol.



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 Posted: Tue Apr 15th, 2025 07:16 am
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chris

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I am all in favour of NOT buying chinese - but, yes, it is going to be way more expensive to have it made locally!

I have just had the unfortunate experience of a Chinese made hire car - a total piece of junk! Undriveable while parking, loaded with stupid bells and whistles but fails totally in its primary job! I would have rather used a push bike ....



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