CNC Machining Blog

Posts Tagged ‘control’

CNC has different applications depending on the machines that operate on it. So if you’re a budding operator, you should know the most common machines that can operate on CNC.

Milling

Milling machines are common CNC machines. These devices are used in the shaping of metal and other solid materials. It is basically a rotating cutter and a table. Milling machines are capable of complex toolpaths as the cutter is not limited to a sideways movement but allows for an “in and out” motion. This movement is precisely controlled by moving the table and the cutter relative to each other. Cutting fluid is then pumped in to lubricate and cool the cut and to remove any swarth that is generated by the cut.

Lathes

Lathes are machines that perform different operations such as sanding, cutting, knurling, deformation, or even drilling. These machines work by spinning various solid objects and then using tools that are symmetric to the axis of rotation. A lathe machine has a single tool in which the workpiece is worked against the tool. The tool is then worked alongside or into the workpiece in order to generate the feed.

Lathes can be used for different operations.

Machining Centers

These are more complex CNC machines that combine milling and turning. As milling was described earlier, turning will be the focus of this section.

Turning is the process by which a central lathe is used in conjunction with the rotation of the material to be turned. The cutting tool is then moved along the two axes of motions to produce accurate dimensions.

Combining turning and milling can produce extremely precise components. And that is what these machines are used for. However, due to the complexity of these machines, operators have to be specialists in order to be able to operate with maximum efficiency.

Electrical discharge machine

An electrical discharge machine (EDM) creates cavities in metals by emitting electric sparks. This process requires an electrode, coolant, a power source, and a tank. The cycle is accomplished by connecting the workpiece to one side of the power supply and then placing it in the tank. An electrode (made in the shape of the cavity required) is then connected to the other side of the power supply.

The tanks is then filled with coolant and the electrode is lowered until a spark jumps between the work and the electrode. As the coolant is a dielectric substance (resists electric currents), it requires a smaller difference in distance in order for a spark to jump through. This means that when the spark appears, the dielectric property has been overcome. The spark then dislodges material thereby creating a cavity in the shape of the electrode.

CNC systems

CNC systems are complex machines that transfer and store data regarding the operation mechanism of the machines. Motion programs include point to point control, straight cut control, and contouring control.

Point to point control means the control of the tools from one point to another in the coordinate plane. This method of control is commonly used in drilling and boring operations.

Straight cut control is the method by which a tool is moved in all axes of the machine. The tool also has the ability to move in a 45 degree angle.

Contouring control is the means to create a toolpath. It moves the tools by interpolating points or coordinates that make up the path for the tool to follow.

Tags: CNC, control, electrical discharge machine, lathe machine, milling machines, tool

I would like to know which model of CNC control system is easiest to both program and use and on which machine models, including both lathes and milling machines.

There are a couple of system you can use.

Go to

We use software from the below web site. It not the cheapest but, the tech support unsurpassed.

http://www.voxtechnologies.com/MOXA_Products/mitsubishi_cnc_control.htm

http://www.ms-tech.com/

You’re my think I’m crazy but try EBay.com and type in CNC control system

They have one listed for small machines at $1350.00

Tags: CNC, control, ebay, machine models, mitsubishi cnc, system

Haas VF20 3 axis milling machine making a spoked model cannon wheel. Cool circular interpolations. This kind of stuff makes me drool. It is a lot more fun to watch it 5 times faster than it actually happened.
Hope you enjoy. Now you know why I am interested in Black Powder!

Duration : 0:3:45

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Tags: aluminum, axis, CNC, computer, computerized, control, cool, educational, haas, Machineing, machinery, machinist, mill, milling, school, VF20

CNC MIlling Machine, first time cutting aluminium. This is the first test of the machine cutting a metal. It seems to cut it with no problem. The tool used is a 3/8″ HSS end mill, depth of cut: 1.8mm. All the interpolation algorithms are programmed in PIC microcontroller, the computer sends coordinates for the G code.

Duration : 0:1:40

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Tags: Aluminium, CNC, control, de, diy, feedback, machine, Mechatronics, microcontrollers, milling, Monterrey, Tec

Is one newer than the other and does one work differently than the other

CNC simply mean computer numerical control, that can be any system that uses computer numerical control, when you add lathe to the end then that means computer numerical control-lathe. For a list of machines other than Lathes that use CNC controls, you should try wikipedia, I will link it below

Tags: CNC, cnc controls, computer, computer numerical control, control, lathe

I wish to seek experts advice & guidance with various website links related plc programming,Electronics & Electrical, Sensors,
Pneumatics, Hydraulics, Machine Vision Systems & High technology CNC Machines & control systems. Training Centres in India. to enance my knowledge level & be a technically competant proffessional.Job opportunities for marketing above products & services in india. presently working as a customer support executive in above field. I shall be highly obliged to whom so ever it may concern. Thanks & Regards

There are basically two divisions . One in the process control industry and two in the manufacturing and machine tool industry.

The first one deals with using pneumatic and hydraulic actuators , sensors and PLC’S to control fluids.

The second in machine control applications.
Regarding the first there is the Fluid Control Research Institute , In Kerala .

Regarding the second there is CMTI , Bangalore. You might also enquire about institutions in Coimbatore for CNC machines.

Tags: amp, Bangalore, control, India, Kerala, machine, machine control applications, machine tool industry, machine vision systems

If you are like me videos of CNC machines make you drool. This video shows the G-code the machine is using as it runs the part. The finished part is a puzzle piece with an inscription I made for my wife.
The inscription in case you miss it says: Camille, You are the “Key Piece” in our family. Programed in Surfcam by Joshua Chapman (less than a week after he first used Surfcam). Hey, no one else is going to brag for me, right?

Duration : 0:3:23

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Tags: aluminum, axis, cad, cam, CNC, computer, computerized, control, cool, educational, haas, Machineing, machinery, machinist, school, surfcam, VF20