about cnc machines

Hi,

This is jagruti Panchal. I would like to have some more detail on the same.

My mail id is pinky.panchal@rediffmail.com . Kindly send me a mail on ur profile,which other machines you make

awiting for your reply

Regards,

Jagruti

Depends on the amount of funding you have! A machine is only as good as what you pay for it! What tolerances you want to hold?

Where are you? come country's have ban's that don't allow the shipment of machine tools.

But let's say you can get anything you want, what do you want to make?

Here's another engineer with a basket of money and no idea what to do with it.

HI

I AM A INDIAN BUT I AM WORKING IN SINGAPORE BUT I PLAN TO START A MINI TOOLROOM IN MY COUNTRY SO I DECIDE TO SUGGEST SOMEBODY FOR TECHNICAL WISE I KNOW VERY WELL IN MY COUNTRY HOW TO DO BUSINESS I MEAN U MAY INVITE TO JOIN WITH ME PLS REPLY ME

REGARDS

DAYA

If your starting a tool room, you'll want smaller machines. Easy to program, done mostly by the operator as you don't want or need to hire a programmer. I suggest a Mazak with a Mazatrol control. That machine has what is called conversational programing so that the operator can program it for simple small programs to make or repair tools, jigs, fixtures, and once in a while punch out a part for the product development team.

When selecting a machine for a tool room, the most important thing to think about is every job you do with it will require 8 to 10 hours to set it up, most tool rooms don't used CNC for just that reason, too long to set it up. If you have a manual mill and a manual lathe, you can get the part, fixture, jig made in the time it take you to set up a CNC.

If it was my tool room, I'd look for real machinist, very hard to find, and manual machines.

Most machinists can punch out a part in less time it takes to set up a CNC machine, but the thing a CNC has over manuals is it can repeat all day, make more parts faster, and after it's set up, doesn't need a skilled operator to sit and watch it. That makes it good for production, bad for a tool room.

See??? the better the question, the better the answer.

Dear Dayya

I am Narendra Bagare Dy. Manager working in BHEL Last 10 year in CNC Machine maintenance & cnc retrofitting.I suggest you for go AGIE WIRE CUT EDM.This machine is very good.Now this company is became Agie CHarmill.

Thanks & Regards

I was a machine operator, then a machinist, and now a mechanical designer. I have worked with Mazaks and Mazatrol controls, and I would have to agree it is a great machine. The plan to have a tool shop has to start out with what product (purpose) you are making and the budget you have to work with.

Basic Equiptment: Manual Lathe and Mill with digital readouts, NC grinder, drill press, EDM.......and so on.

Do you have any machining experience? A person with a mechanical engineering degree and a person who is a journyman machinist may have a lot in common but they are certainly not the same thing. The generality of your question suggests that you are not a machinst. If you were your questions would likely be more specific and you would offer more specific information in order for us to help you with your questions.

Outfitting a machine shop with even one CNC mill and a wire EDM plus the necessary support tools and equipment can easily cost a half million dollars. If you are not already an expert machinist, you can make a lot of scrap and lose a lot of money in the learning process.

Right on, I don't think he knows how much he doesn't know.

By tool room do you mean to make tools? I suspect that grinders will be important as well as what you are currently envisioning.

If by tool room, you mean "expect to produce machined parts on contract basis for manufacturers," then, we really need to look at your plans to get the machines that match your products. Medical parts-CNC swiss; Automotive parts in high volumes- CNC may not be the way to go. cam type automatics if the tolerances are average and volumes are high. If labor rates are cheap and plenty of skilled hands available, buying cheaper machines to do secoindary work makes more sense than buying a very expensive finish it complete 5 or more axis cnc.

milo

I have been the technical director of a CNC training school and was faced with a similar sitiuation when we set up the school. Good advice from several posters. I see the issue as primarily based on the end use, tolerance and support available for the machinery you choose. Talk to people in your area that use the machines. You will need employees with experience and if you buy a machine that no one else has you will be without much support.

Specifications

Support

Training

Parts availability

Cost

I made some mistakes when I established our school that took years to overcome. I bought good equipment but it was not what industry in my area needed so we were all set to train people on a couple of machines no industry people had.

You can buy CNC machines for a lot less than you might think. The market is very competative and new machine prices are falling. I went to a big metal working trade show in Los Angles and learned a lot before I spent our budget. That was probably my best decision.

Wise counsel guest.

milo

Absolutely sound advice, in my humble opinion.

A bit of time researching what others (successful others) are doing will serve you well. Here (cr4) you can find general statements, but without all the dirty details you are not going to be well served. It might serve you better to form a list of potentials and allow those of us with experience to input on that, and assist in the 'narrowing down'.

I have worked in many shops, as either machinist/machine programmer/set-up or QC or all the above. I have to say based on my experience that Mazak has an absolutely awesome series of machines as well as support and many qualified service techs. We machine plastics (many exotic), metals including castings, forgings, superalloys, and standards for use in deep-sea/sub-sea applications, aerospace, and semiconductor industries.

In fact we have 3 production dedicated, dual head Mazaks that run 24/7 on some pretty tight and complex high volume production castings. Machinining 30 profile features to relatively tight tol's at 7 min/pc. They are bread and butter.

However, that does not mean that it is best for you.

So . Study what others are doing. Talk to them. Learn from them. Then come here and we'll throw our 2cents (three pence?) in.

Good luck guys!

cr3

I too, began before CNC was the 'only way'. Do not underestimate the ability of a good machinist on a manual set up. I often am surprised to see the absolute dependence on CNC.

Can't agree more! When I first started with cam operated turret autos like the tornos, I was impressed at the shear speed at which you can pump out high tol parts! these machines can have live tooling on the turret and on the cross slides (model permitting!) and in the hands of a good setter will out class many CNCs

Aye! The only issue with the cam machines would seem to be amortizing the set up time on short runs of parts. But on high volume they're hard to beat. We have seen a lot of folks reduce set up time as well by using standard methods and off the machine presets to dramatically reduce time machine is not "in the cut."

milo