REPORT BENGKEL CNC

INTRODUCTION
CNC is a machine used for automatic control in the industry. This machine works to control the work of other machines used. In other words, we do not need the public operator to operate several machines we have.

CNC (Computer Numerically Controlled) was the machines that use the operation 'Numeric' to operate the machine from numeris data stored on the computer.

For example, the CNC has used in the metal industry. In this operation, CNC mechanism used to control the machine tool and metal cutting. So long as thick metal pieces produced by metal cutting machines, CNC machines can be arranged by. At present, only the metal industry is not only a technology in CNC machines as automatic process.

Sophistication of facilities for CNC itself is re-programmed according to requirements. CNC programmed by software 'Fanuc'.Through the work of this software is governed by our CNC, arranging work, means we have arranged automatic process for the machines of other industries, because basically this machine is a controller for the works of other machine.
NC / CNC consists of three main sections:

1. 'Programme'
2. 'Control Unit' / 'Processor'
3. Machine / 'Hardware'

Working principles of NC / CNC in moderation can be described as follows:
'Programmer' create CNC programs for products to be made in a straightforward manner on CNC machines or made on a computer with programmer CNC software. The CNC program, known as' G-Code, sent off and translated by the 'processor' on the CNC machine and produces a servo motor settings on the machine to move the tool that moves make the process of machining to produce according to data from programs that have been added into the (key-in) CNC machines.



Definition of CNC machines.

CNC (Computer Numerically Controlled) machine tools are equipped with mechanical systems and computer-based controls that can read the instructor code N, G, F, T, and others, where the codes will be 'taught' to operate CNC machines according to program things work will be done. In general, the workings of CNC machines is no difference with conventional machines.

Function CNC machine operators are replacing workers who operate conventional machines. For example, job organizing the movement (setting tool) ready to carve up the position of cutting, cutting and retracting movement to the starting position, and others. So it is with cutting settings (cutting speed, cutting speed and depth of cut) as well as other functions such assuccession arrangements chisel, alteration of transmission of force, and direction of rotation of the main elements, coolant, etc. settings.

The types of CNC machines.

CNC Turning Machine
CNC Milling Machine

Axis
CNC Machine 'Turning' refers to the tool. It has an axis:
Z: length
X: Diameter


And it has an axis of 'Zero Point References'


Coordinate System

Absolute Coordinate System

Absolute coordinate system is the programming to determine the coordinates point to the point of no work thing. Position of the point in working things always begin from the point of no as a reference measurement. As a reference point for working things no self-parking point is determined based on the kind of work and impact of programs to be made. Determination of the point of no substance to the zero point of work. At work things complicated programming, via the G-code "a particular point of zero normal work things moved according to simplify programming and to avoid measurement errors. Absolute programming also known as absolute programming system, where the movement of cutting tool to the point of no work thing. Advantages of this system is, when the programming error occurred during the simulation on the display machine, CNC control panel will show the point on the display screen, so it's easier for us to make the necessary corrections.

Comparison system

Programming is a program relative to the measurement route is always the end point of a crossing. Endpoint of a path is thestarting point for the next track coordinate measurement or determination based on the change in length in the X axis (ΔX), andX 6 Y axis length track (ΔY). Point of no matter to work at no point as the initial reference point, place the point of no work itemsare determined based on the kind of work and impact of programs to be made. Determine the following coordinates tothe endpoint of a crossing point. Comparative programming system, also known as a chain or system of programs' relative coordinate.Determination of cutoff tool movement from one point to the next point refers to the final termination point cutting tool. Thedetermination of the phase out point. The drawback of this programming system, any error in the determination of coordinatespoints, the deviation to be increased.

Conclusion

After a practice for 3 weeks we have to recognize machine CNC Turning 'closer. We can learn how to use CNC Turning machines using the code 'G' and 'M' as well as understand the uses and functions of the machines' CNC Turning. Spirit of cooperation between members of each group can be cultivated during practice and practice proper safety measures during practice ..

1. We can understand how the use of CNC lathe machine at work project.

2. We can complete the project according to project design and project dimensions.

3. Made to achieve the project objectives and in accordance with our requirements.

4. Understand what has been taught in theory and in practice can be machined.

5. We can solve the problems during the project coordinate system before we make a simulation.

6. We can understand how to enter data (key-in) program at CNC Lathe machine control panel.

7. We can use the machine CNC lathe skills to the project.

8. Able to produce ideas for the design of this CNC project.