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Computer Numerical Control (CNC)

CNC Machine Parts

Computer Numerical Control (CNC) is defined as a subtractive manufacturing process that typically uses machined tools and electronic controls to remove layers of material from the merchandise. Doing so delivers a custom-made part and is suitable for a wide range of materials. It is a high-precision method for making customized parts sourced from different materials.

Apart from glass, plastic, wood, foam, custom CNC aluminum, and metal, CNC machine can find their application in a number of industries. In other words, we can define CNC as the representation of actual programmable machines that can independently perform the desired operation. CNC machines work on 2 subjects, i.e., CAD and CAM. CAD is a computer-aided design. It helps you learn about the design of the machine tools and machine. CAM is computer-aided manufacturing. This subject deal with manufacturing instead of design.

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    At Mechanical Power we leverage CNC capabilities by utilizing:

    • High accuracy
    • Prompt order lead times
    • Customization
    • Complex designs
    • Online editing programs
    • An ideal choice for safety reasons
    • 24 hours a day operation
    • CNC equipment reliability
    • Product manufacturing with outstanding performance and endurance 

    History of CNC

    The evolution of the CNC machine started with numerical control. The first numerical control machine was made in the 40s and 50s. Though the working of these machines was based on pre-existing tools, some modifications were present.

    The machine’s motors moved as per the input information, whereas the code was punched manually in the data cards. The first steps towards CNC machining were taken during the 50s. in the beginning, MIT computers were prepared to give out the punched tape according to the data input. At one point, the time spent on making the card significantly reduced from eight hours to mere minutes.

    This time-efficient aptitude helped with more research and development, after which the initial programming language for CNC machines became accessible for use. Due to the low computer prices, CNC took over charge from numerical control in no time.

    Types Of CNC Machining Operations

    Custom CNC machining is a manufacturing process that is suitable for a wider range of industries. It is applicable to aerospace, construction, automotive, agriculture and many more. CNC can also produce a massive range of products like surgical equipment, garden tools, automobile frames, and hand tools.

    The CNC machining process includes different computer-handled operations such as thermal, electrical, chemical, and mechanical processes. While other processes are of utmost importance, some of the most common CNC machining operations include turning, milling, and drilling.

    CNC Turning

    It is a manufacturing process where bars of material is kept in a wedge and rotated to remove material and create the desired shape. The lathe or turning machine is programmed to move the raw material’s bar and form the programmed product. This process is often termed as subtraction machining as it includes the removal of the material. The center has machining and milling capacity, whereas the rotation can be allowed or stopped to mil out other shapes.

    CNC Milling

    Computer numerical control milling is a process that uses computerized controls as well as rotating multipoint cutting tools to remove the material from the given workpiece. It is mostly suitable for making materials such as custom CNC metal, wood, and glass.

    The milling machine uses a cylindrical tool, i.e., a milling cutter held in a spindle. With this process, the ability to cut material in different angles and axes is much better. There are many kinds of milling machines according to the number of axes movement.

    Two-axis milling machines:
    They can cut holes in the x and z-axis, i.e., horizontal and vertical cut in a single direction.

    Three-axis milling machines:
    Add y-axis with these CNC milling machines. You can cut material in any direction, but for a sphere, you can only do one half at a time due to even three-axis.

    Four-axis milling machines:
    These machines are very complicated due to their ability to rotate the x-axis like a lathe.

    5-axis milling machines:
    Add in rotation in the x and y-axis. With them, you can shape car structures, bones, medical products, and even aerospace structures.

    CNC Drilling

    This form of CNC machining operation is mostly implemented for mass production. The machine here is a multi-functional center that works by turning and milling. In this process, the cutting piece doesn’t move; rather, the cutter passes through and tear the material.

    Many CNC drilling machines are available such as radial, upright, and bench, to allow drilling up holes of plain and complicated patterns of different diameters.

    CNC machines refer to the machine in which a computer is connected to the mill with other electrical devices and sensors to make a complete system. This set up helps control the movement of a machine’s axis. These machines are very precise, accurate with repeatability that can exceed the levels possible through manual programs.

    When looking for custom machining services near me, many factors go into picking up the CNC machines. The type of parts you wish to have in your machine decide the type of mill you need.

    There is so much variety in the types of machines and machining. You can pick a technology that best suits the type of part you plan on creating.

    Mechanical Power specializes in custom machining and global sourcing services. Contact Us and talk to CNC Services professional on how we can source your custom machining project for your company today.

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