Category Archives: CNC Milling

How to get the best surface finish from a CNC milling machine

So how do you get the best quality finish from a surface using a CNC milling machine? The most obvious and recommended answer is to enlist the help of an experienced company with a background in CNC machining, as you can be assured of high quality work.

If you decide to do the work yourself, then there are many different tips and tricks that you can use on a CNC machine to ensure that you create a good quality surface finish.

Ensure the correct speed and feed

One of the most critical elements of using a CNC milling machine is to ensure that the feeds and speeds are correct for the job that you are trying to complete. While it may be tempting to estimate or guess at what speeds are required, there are a number of different factors that need to be taken in to consideration.

One option is to use CNC machine software to advise you of the feeds and speeds that are suited to your activity, so unless you are heavily experienced in completing the job at hand, then this is worth some serious consideration.

If you do use a CNC machining company, then one positive is that they will most likely have the best software and tools available, ensuring the speeds and feeds are accurate and precise.

Different tools for finishing

One useful tip to ensure a top surface finish is to keep one tool especially for finishing, while another for roughing. This will allow the finishing tool to create a finer and better quality finish, while the roughing tool can be used for the bulk of the work.

Once the finishing tool has been used for several finishes, it can then be utilized as a roughing tool, with a new tool brought in to finish.

Clear any chips

While most professionals will already know, one vital job is to ensure any excess chips are cleared up as soon as possible. As the CNC milling machine cutter continues to work, chips can easily slide around and scratch the material, potentially damaging the end product and ensuring a poor finish.

By air blasting the chips away frequently this will keep them away from the hole and will consequently minimise the chance of scratching.

Benefits of using a professional CNC machine company

While the above tips are just a brief selection out of a whole range of tips to create a top surface finish through a CNC milling machine, it is highly recommended to use the expertise of a dedicated CNC machine company.

The initial cost of a CNC machine can be considerably large, so before deciding to go this route yourself, it is certainly worth considering if the work you are doing can be outsourced. This may be a cheaper and more efficient way of creating the products that you desire, while also giving you access to more expertise and guidance throughout the process.

Do You Need A CNC Milling Machine?

CNC milling machines are one of those inventions that have truly changed the manufacturing industry for the better. As a computer numerical controlled machine, it is operated by a software program instead of a human being, meaning that the results it produces are more detailed, it can make many products in a short space of time and can be completely automated if needed.

A CNC milling machine does all that a regular milling machine would, with all of the above benefits on top of that. If you work in the manufacturing industry then you will probably need a CNC milling machine at some stage to help you with production. The question is, should you purchase, or make one yourself, or simply avail of it from an outside source? The answer to this depends on the needs of your business, for example what and how much of you need to produce and how often you need to do so.

Small CNC milling machines can be relatively easy to make but do require expert skill, so if you do not feel you will be able to make a machine like this accurately then there is no point in doing so, as it will not produce the detailed and qualtitative results that you want. In order to make CNC milling machines, not only do you need excellent mechanical engineering skills, but you also need to be a bit of an IT whiz to be able to write the computer program that runs the CNC milling machine. If you avail use a CNC milling machine from an outside source, like Affinity Manufacturing Ltd, then you will have a team of people with all of these skills available to you, as well as the most up to date CNC machinery.

You must also think of what you need from a CNC milling machine. If you want it to make a prototype or part, then it is not necessarily a good idea to invest in one yourself. You may not wish to follow through with your prototype and if this is the case you will be left with a CNC milling machine that you do not need.  As well, the advantage of outsourcing your machining is that the machining company has multiple machines and expert maintenance, so you are not depending on one machine to function well.  If a machine has a technical problem, or requires maintenance, it can be handled while other machines are still in operation, meaning that production does not have to come to a halt.

If you choose to use Affinity Manufacturing Ltd for a CNC milling machine, the team there will be able to advise you on your prototype, both design and construction wise. We will also offer a non-disclosure agreement so your designs will remain in your hands exclusively.

If you need to use a CNC milling machine on a regular basis for mass production then it may very well be worth investing in one, but for reliable, timely CNC milling machine use, from prototypes to large production runs alike, contact Affinity and let us assist you with your CNC milling machine needs.