5 Reasons Why Your Business Needs Precision CNC Machining？

When you think of a precision CNC machine shop, you probably think of a large operation focusing on high-volume delivery. Indeed, this is what many shops have switched to in order to maximize their profits.

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There’s nothing wrong with high-volume CNC machine shops. In fact, they fill a very important niche in the market. But in some instances, it is better to go with a low-volume machining contract manufacturer.

Here at PEKO, we love low-volume precision CNC machine shops, and there are quite a few reasons you should love them too:

Skilled, Experienced Employees

High-volume machine shops operate much differently than their low-volume counterparts. Not to say they can’t create quality products, but the sheer volume of units per order creates a completely different structure for manufacturing operations and personnel.

With a low-volume precision CNC machine shop, the focus is on quick setups. This is a trick of the trade that is disappearing from many manufacturing industries these days. It takes a highly skilled team of workers to be able to set up machines quickly and effectively.

Quick Turnaround Time

Low volumes and short runs mean parts get off the machine quickly so that the next part can get started. Low-volume precision CNC machine shops have low setup times because of their skilled and experienced employees. Because of their long-standing experience, these employees also have a much deeper understanding of ERP systems, meaning that they have a good understanding of your business and can integrate their work into your plan quickly, efficiently, and in a high-quality manner. A higher quality of work also means that products pass inspection quicker, allowing you to receive your order in a timely manner.

Your Business Is a Priority

High-volume machine shops tend to have one large customer and a few smaller ones. This one large customer is typically responsible for the bulk of their business, so the high-volume machine shops must cater to the needs of that customer above all others.

So, what does this mean for you? It means that if the big “more important” customer puts in an order, that your order likely gets put on the back burner. Or worse, if your order is already in progress, they may rush it through completion and inspection, resulting in the delivery of an inferior product.

On the other hand, low-volume machine shops have many small customers, which means that everyone is treated equally across the board and that your business matters to them. Consequently, these low-volume shops will complete small orders with improved accuracy, because they don’t have to rush through your order.

Reduced Overhead Costs

Low-volume precision CNC machine shops need to output high-quality products. To do so, an in-house machine shop will have to incur significant overhead expenses, including wages/salary for a skilled workforce and capital equipment, among other things.

You will not only need a skilled team of workers on the floor but also a competent management team. We’ve all heard the saying “you get what you pay for,” so hiring a high-quality management team often means paying high salaries. When coupled with the cost of skilled workers, a low-volume in-house machining operation can get very costly, very quickly. More employees also mean more work for your human resources department, preventing them from concentrating on other areas of your company.

Also, in order to meet all your needs, a machine shop needs a wide variety of equipment. In addition to these initial expenses, machine shops need to frequently update their equipment to keep up with emerging technologies. This is true of both in-house and independent shops. Since the cost of purchasing and upgrading equipment is high, an in-house machine shop can become a drain on your company’s resources.

Certifications & Regulatory Compliance

Most precision machine shops are ISO certified, but if you operate in the defense, medical, or semiconductor sector, you’ll probably want more proof that your high-tech product is going to be manufactured with care and quality. Since most low-volume precision CNC machine shops want to enter a niche category, they often have to get certifications such as the Medical ISO or Aerospace AS. This is a measure of their commitment to meeting your needs and lets you rest easy knowing that your order will be completed with the highest possible quality.

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CNC machining, or computer numerical control machining, is a manufacturing process that utilizes computer-aided machines to cut metal or other materials into intricate patterns and shapes. It offers many unique benefits that make it a valuable technology for a wide range of industries. 

Among the outstanding CNC machining benefits for machinists is that it allows them to re-shape and redesign existing parts without having to start from scratch. When they do create a part from scratch, they do so through CAD (computer-aided design) software which enables them to make very intricate designs with minimal wasted material. This method of machining can reduce waste and save money thanks to the computer’s capabilities and automation, instead of relying on human operators. Additional valuable differences make themselves plain depending on the application. In this article, we'll look at some of the top CNC machining benefits.

1. CNC Machining Generates Minimal to No Waste

CNC machining is not only efficient, but it can also minimize material wastage thanks to its precision and accuracy. As long as the part is designed properly in the computer, the machine itself will almost never make faulty cuts, so there will be fewer damaged parts to discard. The machine can handle precise cuts and angles without generating much waste. 

2. CNC Machining Is More Accurate and Has No Defects

One of the major CNC machining benefits is accuracy. Because CNC machines receive precise instructions from a computer — and the movements are similarly carried out under computer control — their results will be identical each time and will match the computer model closely. This is a huge advantage when it comes to creating parts with tight tolerances. This capability almost entirely eliminates human error from the equation. 

3. CNC Machining Offers More Rapid and Effective Production

Another industry-cornering CNC machining benefit is the inherent speed and efficiency of production. CNC machines are capable of producing products much more quickly and efficiently than traditional methods. Many modern units can even load the billet and unload the completed product without human intervention. Naturally, this capability leads to significant cost savings and increased productivity. In addition, this sort of automation makes parts more consistent. 

4. CNC Machining Makes Assembly Faster

Products whose components are created under computer numerical control are simpler to assemble. Because CNC machining is so precise and consistent, companion parts will fit together exactly as they do on the computer. And since the process is quicker than manual machining, you’ll spend less time waiting for parts to be completed. Unless there is a problem in the computer model, all parts should fit together perfectly. This capability can save a lot of time and money in the assembly process, as there is no need for extensive fitting and adjustment.

5. CNC Machining Separates Machines From People And Reduces the Risk That Would Otherwise Arise

CNC machining removes significant safety risks from the shop floor. By automating the machining process, you can eliminate many of the hazards associated with manual machining. In addition, CNC machines are typically enclosed, which further reduces the risk of injury.

6. CNC Machining Uses Little Energy

CNC machining uses less electricity than older processes, thereby reducing energy consumption. In fact, according to the EPA, CNC machining uses about one-seventh of the energy of traditional machining methods. There are multiple reasons; CNC machines not only work quickly but draw less power per minute than most other manufacturing methods. 

7. CNC Machining Can Reduce Production Costs

CNC machining is an economical, efficient, and precise process of manufacturing parts and products. CNC machining also uses fewer raw materials in comparison to conventional machining. Focusing your shop around CNC technology will drastically reduce errors, production expenditures, and product costs.

Figure 1 is an example of a CNC machine:

What Is CNC Machining?

CNC machining is a subtractive manufacturing process used to create parts by removing material from a workpiece or workpiece stock. Preprogrammed software and codes are fed into the machine to control the movement of its equipment. CNC machining covers a wide range of machinery such as: turning mills, lathes, grinders, and plasma-cutting machines. Figure 1 is an example of a CNC machine:

The first CNC options on the market were for milling. CNC milling machines perform complicated operations on materials such as metal, glass, plastic, and wood. These machines have many different features and capabilities that allow them to create intricate shapes, cut out designs, and even engrave words onto products. Though very expensive in the s and ‘80s, today’s CNC machines are much cheaper and are becoming increasingly popular among hobbyists and professionals alike. 

What Is the Importance of CNC Machining?

CNC machining is critical in today’s industrial environment for its ability to produce accurate, repeatable, and affordable products. The method enables items that would be impossible or prohibitively expensive to fabricate using other manufacturing techniques. For example, CNC machining is one of the finest ways to guarantee perfectly constructed telecommunications equipment such as heat sinks, microwave tower parts, and amplifier housings. The method enables the precise design and manufacture of intricate mechanical parts while taking into consideration technical specifications, component dimensions, and geometry. 

How to Choose a Good CNC Machine

There are a lot of things to consider when choosing a CNC machine for yourself. Here are some tips to consider:

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1. Project Goal: Consider the project's goal before anything else. A CNC router will probably be the best option if wood is your main material. A CNC plasma cutter is the finest choice if you aim to work on metals.
2. Cost: Bear the price in mind. Cost includes both labor and maintenance costs in addition to the machine’s price.
3. Machine Weight: Take into account the machine's weight. Cast iron construction is best if you’re tackling heavy-duty, difficult tasks. If not, alternative lighter-weight equipment will usually work.
4. Power: The power rating of the equipment is yet another crucial factor. This will influence your cost analysis and must also fall within the capabilities of your facility’s electrical system.