In the past, machining processes were manual and dependent on human efforts. Due to human involvement, the chances of errors were high. However, CNC machining has transformed manufacturing processes. However, many still don’t understand the true value of CNC-based systems. So they ask: Why is CNC machining so popular in advanced manufacturing?
This process has undoubtedly proven a miracle for many industries. Parts that used to take months are now built in hours. CNC stands for “Computerized Numerical System.” This CNC system makes the machining 100% precise. This article will explain why this process is becoming very popular. So, let’s get started!
What is CNC Machining?
Let’s first understand what CNC machining itself is!
It is a manufacturing process that uses advanced machines and tools. These machines use a CNC system and are 100% precise. Examples of those machines include CNC mills, lathes, and grinders. The computer handles and controls the tools in such machines, resulting in exceptional precision.
CNC machining is not a single process. Instead, it is a set of processes that utilize CNC machines. For example, CNC milling, turning, and grinding are all under CNC machining. CNC is a short form for “Computerized Numerical System.” A dedicated computer controls the machines that use CNC.
CNC machining refers to all manufacturing processes that use computerized machines. Unlike traditional systems, a single operator can run CNC machines and get accurate results. These machines use automated instructions, which the computer system analyzes and interprets.
After interpretation, the computer commands the machines’ tools to act accordingly. Tools’ cutting and shaping (working) are 100% accurate per your instruction. As a result, you get 100% precision. Interestingly, this machining process is speedy and can give final output in minutes. Its fast working is what differentiates it from old methods.
Why is CNC Popular in Modern Manufacturing?
With time, demand for different products is increasing. So, manufacturers have to be proactive and meet their needs. That’s where this CNC machining helps them through its speed and precision. The section below will discuss several reasons that make CNC machining very popular.
1- Precision & Quality
Precision is key for modern manufacturers. Small mistakes in the design or size of the product can result in a company’s reputation. In such cases, the CNC machines spread their magic. As said earlier, these machines use computerized instructions.
The computer then follows the instructions and executes the action. Human involvement is very low, which reduces errors. This results in excellent product precision. Making complex-shaped products can be challenging with old methods and techniques. However, CNC machines can easily cut, shape, and create such products.
2- Speed & Turnaround Time
Old-fashioned machines require human effort and involvement, so their speed is very slow. This affects manufacturers’ productivity and efficiency. However, CNC machines are high-speed and accurate.
All you need to do is give the computer a set of programmed instructions. The computer will interpret the instructions and command the tools, completing the work in no time. This process won’t make any mistakes, improving the precision of the entire process. Modern manufacturers can complete bulk orders very quickly.
3- Consistency & Repeatability
The CNC machining process is very consistent, especially regarding repeated tasks. For example, you need a bulk quantity of a single product. The shape and size of all those products are the same. In such a case, you’ll have to create one programmed instruction for the computer.
After that, the computer will follow instructions and shape the product. You won’t have to make instructions for the second product. Instead, one set of instructions will help you make tons of the same product. In this way, CNC machining streamlines the manufacturing processes. The old methods lag when it comes to repeated tasks and affect productivity.
4- Complex Shaped Products
In the past, creating complex-shaped products was challenging. The machines were not very precise, which affected manufacturers’ performance. However, CNC machines can make products of even highly complex shapes. The reason is that they use computerized systems that ensure precision.
The operator uses CAD software to create a model of the product’s complex shape. The model is then changed into programmed instructions, which the operator feeds to the computer. During machining, this computer commands cutting tools correctly as per instructions. This results in 100% precision, even if your desired product has a complex shape.
5- Versatility & Material Compatibility
CNC machining is not a single process. Instead, it is a set of various methods that use CNC machines. For example, CNC milling, turning and grinding fall into the CNC machining category. You can use those machines to get different functionality.
Moreover, CNC machining is not bound to any specific materials. For example, you can use a CNC machine to cut metal, plastic, and composite. Many furniture-related industries use CNC to cut and shape the wood to make products. This indicates how versatile CNC machining is! In this context, old methods were very limited in their material compatibility.
6- Reduced Material Waste
Have you ever visited a wood shop and noticed tons of waste? That is common in old shops that rely on old machining systems. Modern manufacturers that use CNC machines don’t face material waste. These machines come with sections that collect the chips during cutting material. This results in very clean manufacturing operations. Minimal waste also reduces the cost of the product, so manufacturers can make more profit.
7- Reduced Labor Costs
This factor may seem less important but can significantly impact a business’s profitability. For example, the old machines require more staff, workers, and employees. The reason is that those machines are manual and require human effort. However, the CNC machines are automated.
This means they don’t require more labor. A single operator can handle the work of these machines, reducing labor costs and making manufacturers more profitable. If a company has more labor, its salary will reduce its profitability. Moreover, modern machines don’t require regular maintenance, which is another plus.
8- Cost-Effectiveness
Many people believe CNC machining is costly. The initial cost of machines and tools makes the process unsuitable for manufacturers. This is a half-truth – as CNC machining is very cost-effective in the long run. There is no doubt that CNC machines and tools are expensive. But you’ll have to buy them once in life.
They will keep working without requiring any regular maintenance. The old machines require maintenance every month. They are more prone to wear and tear. Moreover, you need more labor, which increases your cost. However, CNC machines don’t require extensive labor, saving you some money. Moreover, their material loss is also negligible.
You can complete more orders and fulfill demands on time due to their fast-paced CNC machines. Moreover, the operations of these machines are very clean and smooth. So, manufacturers are more productive with CNC machining. As a result, their profit goes up in the long run. The old-fashioned machines may seem inexpensive, but their operational cost is high.
Conclusion
CNC machining has proven to be a game changer for modern manufacturers. Many companies have shifted from old methods to CNC machining. This is due to a combination of better cost-effectiveness and performance.
This article has discussed the reasons behind the popularity of CNC machining among manufacturers. Are you a small business and confused about selecting CNC machining? I’d recommend you buy CNC machines rather than relying on slow machines. This will make your business profitable in the long run.