Category Archives: CNC Machine Shop

How a CNC machine shop works

CNC Machine shop performs different services on a day-to-day basis. There are several companies carrying out CNC machining services. Irrespective of whether the organization is small business or extremely large, CNC machining process is used by one and all. A very basic idea that is behind CNC Machine shop is that earlier there were tedious operations that were being controlled by human operators but with this machining shop, they can now be controlled automatically by a system. It’s done via specific kinds of programming that will be handled by the machining operator. Those who are associated with manufacturing industry are likely to have some idea of the CNC machining. But if you don’t have any knowledge regarding CNC machining, this guide will provide you great assistance.

Foundation of all the CNC Machine shop is motion control. It is constant, precise, and automated movement of machining tool on several different axes. Every CNC machine can have 2 or more motion control axes that will be moved in circular or linear fashion. This movement can be programmed by different commands. The computer will interpret these commands and carryout the operations. When commands from the program get executed within the control system of CNC, it tells the drive motor to carry out rotation a certain number of times. Then ball screw that drives motion on axis will get rotated. At the other end a device is available for providing feedback on the successful count of rotations. It’s not possible to explain every drive motor regarding the number of times that it rotates. Instead, all controls will allow motion to get programmed in a simple way making use of the coordinate system that can either be polar or rectangular. Different kinds of motions are there driving CNC machining. First one is absolute motion. This motion implies that end points for all movement are specified with CNC program from “zero point”. Absolute mode needs more attention from machining operator and hence is quiet complex. If you think of assigning program zero, it will vary from one machine to the other. Operators need to tell CNC control about location of zero point. The best way is assigning this within program by explaining control as to how much away it is between start point and zero point of the machine.

CNC machine programming is the manner in which operators will tell machine what actually they have to do and this is done via specialized programming. CNC machine program will be written with several sentences like commands. Each command contains specific CNC words that will include both number elements and letters. Letters describe the “kind” and numbers describe “value”. The instructions can be assumed as step-by-step guide as to what machine has to do at particular point during machining process. There is a CNC programmer who will first visualize the complete process during the implementation phase. They will then require inserting the steps into the program through different available words or commands. CNC Machine shop can look complicated but actually it is not tough to wrap or grasp. One must not forget that there are just 40 to 50 different commands one needs to bother about. It is just like learning some language and is not that intimidating or difficult. Little practice, study, and experience will help even beginners to excel in CNC machining field.

Some advantages of CNC Machine shop are listed below-:

• Offers balanced introduction to not only machining but also programming

• Makes use of knowledge of the readers on conventional machines for explaining operations of the CNC machining

• The CNC Machine shop comes with sufficient details for providing practical aspects and theoretical knowledge for comprehending CNC machining

• Includes chapters on manual and conversational programming in addition to computer aided part coding

• A CNC Machine shop provides several clear illustrations for completely clarifying text

There are books that are available in market to assist individuals in learning more about operating CNC Machine. These books are simple to understand and written with several examples. They aim at clarifying machine designing, CNC programming, principles of machining, definitions of various motion and axis, and reasons or designing. They also include drawings, tools, and examples, carbide gadgets, inserts, feeds rates technical information, and are highly user-friendly. The biggest advantage of using CNC machines is that they can be put to use all 24 hours of the day and 365 days of the year at a continuous rate without requiring switch-off except for occasional maintenance. These machines have been programmed using design that can easily be manufactured several number of times. The biggest benefit is that every manufactured product is going to be completely same. Individuals who are not much trained or skilled will be capable of operating CNC machine with the help of manual that is provided for them. For upgrading these machines, one simply requires improving software that is used for driving the machine. In order to get trained at operating CNC machine, there are numerous virtual software available. These tools will allow operators to learn using the tool. Furthermore, users can practice operating CNC machine by making use of these virtual software. The machines have been programmed using advanced designing thereby enabling manufacturers to produce products that in turn cannot be manufactured using manual machines. With modern design tools, designers can simulate their manufacturing ideas. Moreover, there isn’t any need of model or prototype. This means CNC Machine shop is a great way of saving time as well as money. Only single person is required for supervising several CNC machines and once these are programmed, you can leave them to function on their own. At some instances, operators require replacing cutting tools and that too it is occasional. Engineers who are highly skilled and experienced can make similar component several numbers of times. When every component has been studied carefully, each one is going to vary to slight extent. CNC machines have the ability of manufacturing every component as exact match. These machines allow operators to enjoy complete benefit of the raw materials. They are highly accurate at delivering as well as reducing waste material thereby minimizing losses and maximizing profits.