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CNC Machining Services
CNC Milling & CNC Turning
Mild Steel, Stainless Steel, Aluminum & Copper
CFS Machine Shop provides a variety of precision CNC machining services including CNC Milling & CNC Turning. With the lastest manufacturing technology & advanced CNC machines (3-, 4- and 5-axis machine centers), we can customize all shapes of metal parts to your drawing's specification. No matter it is a small or large production order, we always offer quality products with fast delivery. Contact us today to get a free quote for your project!
CNC Machining Processes
CNC Milling
CNC milling is a metal working process that turns solid metal blocks into finished products with desired dimensions by using 3-, 4-, and 5-axis milling machines and a variety of cutting tools.
CNC Turning
CNC Turning is an effective manufacturing process that is more suitable to produce round shaped parts by removing material from metal bars or tubes. It includes cutting processes such as boring, grooving, and facing.
Why Order CNC Machined Parts from CFS?
Advanced Machining Equipments
CFS always imports advanced machining equipment to provide customers with a quality product. Due to our high-quality machines, we can produce CNC machined parts with higher precision than other machining factories in China.
Broad Range of Material Options
Our company has a stock of more than 100 different materials for a wide range of applications and industries. Materials that we prepare for CNC machining are Mild steel, alloy steel, aluminum, stainless steel, brass, and copper.
Guaranteed Quality
CFS Machining Shop is a team of highly skilled engineers. We also have cutting-edge machinists and quality control experts who can take care of your product and deliver the perfect product the first time. The quality of CNC machined parts in our company is 100% inspected & guaranteed before delivery.
Competitive Prices
Usually, we provide quotations depending on your needs, material cost, and machining difficulty. Since we are a China-based company, we have the advantage of lower material and labor costs than the US, UK, Canada, Australia, etc. So we always offer manageable prices.
Fast Production & Delivery
As we are located in China’s second-largest port (Ningbo Port), we can supply quality products to overseas companies very quickly, as some of the production is going well.
Custom Service
To meet our customers’ needs, we provide customized CNC machining services based on their drawings and supply the finished components according to their requirements, along with heat and surface treatment.
CNC Machining Materials
Mild Steel
These are low-carbon metal alloys that shows good mechanical properties, machinability and weldability at a reasonable price. It can also be carburized to increase the hardness. Common grades are: Q235, Q345, 1020, 1045, etc.
Alloy Steel
Other alloying elements together with carbon forms Alloy steels. They are associated in improving hardness, toughness, fatigue and wear resistance. Common grades are: 40Cr, 4140 (42CrMo), 4340, etc.
Stainless Steel
Stainless steel alloys offers high strength, ductility, wear and corrosion resistance. You can easily weld, polish, or machine them.
Common grades are: 304, 304, 316, 17-4ph, 2205, etc.
Aluminum
Aluminum alloys show good strength-to-weight ratio, possessing high thermal and electrical conductivity, natural corrosion resistance, low density and it can easily be anodized.
Common aluminum alloys for cnc machining are: 6061, 6063, 6082, 7075, etc.
Brass & Copper
Brass & copper are basically metal alloys that offers good machinability and excellent electrical and thermal conductivity. They can ideally be used in places where low friction material is required. It’s often used for bus bars, wire connectors, and other electrical applications. Examples of alloys are: C36000, C10100, C11000, etc.
Surface Finish Options
As-machined
When the CNC machining process is finished, it can creat a smooth surface finish with minimum roughness Ra6.3. The parts will keep as machined surface when there is no additional surface finish requirement. CNC machining can also produce a part with higher surface finishes such as Ra3.2 or Ra1.6.
Powder Coated
This is a process where CNC machined parts are sprayed with powdered paint and then baked in an oven under a certain temperature. Compared to painting process, powder coated finish is more durable, as the surface layer of cnc machined parts are strong, wear- and corrosion-resistant. A variety of colors can be chosen to achieve a decorative effect.
Anodized
Anodizing is one of the most durable finishes that prevents cnc machined parts from scratching. This type of surface finish is only suitable for machined aluminum parts. Like power coating, a wide variety of colors are available to create the desired appearance.
Zinc Plated
Zinc plating, as known as galvanization, applys a thin coat of zinc to the surface of cnc machined steel parts by electrical current. After forming a protective layer of zinc oxide, cnc machined parts will not rust when exposed to air or water.
Applications of CNC Machining
CNC machining was first used in Aerospace. It is used in this industry because it offers lightweight parts with exceptional physical properties and high tolerances. CNC machining can be used for aircraft parts as well as during the development stages.
CNC machining is also beneficial in the automotive industry during the production of high-performance custom parts. CNC machining is usually used in the production of key components.
The electrical and electronic manufacturing industry also prefers CNC machining in various processes, such as CNC machining, to manufacture parts for high-power electronic sensing systems.
The military sector also uses CNC machining to prototype rugged and reliable parts. The machining intends to allow the parts to withstand wear and tear with minimal upkeep.
Robotics and automation industry mainly uses CNC machining for fabricating robotic end effectors, custom jigs and features, and storage units. Since CNC machines can hold the tolerances of ±0.05 mm and surface roughness of Ra 0.8μm, the designers can achieve dimensional accuracy for robotic parts.
The oil and gas industry also requires tight tolerances for the safety-critical application of CNC lathe. This sector uses CNC milling machines for the production of precise, reliable parts such as cylinders, pistons, rods, pins, and valves.
Gallery of CNC Machined Parts
Overview: What is CNC Machining?
CNC Machining Basics
CNC (Computure Numerical Control) machining is CNC machine tool processing, is equipped with digital control system of automated machine tools. It is a combination of machinery, automation, computers, and other high-tech new technology. Its basic components are digital control program carrier, machine tool device, drive spindle device, machine tool body, and safety guards.
CNC machining is controlled according to the programmed programming, usually G-code, to make the machine tool machining. The G-code digital language can control the machining process of CNC machine tools. It makes the tool control system use different position coordinates, control the tool feed and spindle speed, coolant and other functions.
The correctness of the toolpath can be analyzed using the CNC machine’s idle run. When the digital program is entered into the machine, the fixture tool and workpiece are installed. When the idle button is pressed, the spindle does not rotate and the table automatically runs along the programmed path. At this step, it is found out if there is any contact between the tool and the workpiece or the fixture. The above operation control is controlled by the cam, die and dividing device in the form of analog quantities. The machining accuracy of the parts is affected by the accuracy of the cams and dies, and it can process complex parts with certain flexibility and versatility and long process preparation time. CNC machining solves the problem of complex and precise, small batch and multi-species machining, and it is widely used in modern industry, which greatly improves the production efficiency of companies.
CNC Machining FAQs
What is CNC machining?
CNC (Computer Numerical Control) machining is a process where computer-controlled machines are used to produce precision parts from a variety of materials such as metal, plastic, and more.
What types of materials can be used for CNC machining?
CNC machining can be used on a wide range of materials, including metals like aluminum, brass, copper, and steel, as well as plastics like ABS, polycarbonate, and acrylic.
How does CNC machining work?
CNC machining works by using a computer-aided design (CAD) program to create a digital blueprint of the desired product. This blueprint is then uploaded to the CNC machine's computer, which uses the information to control the cutting tools and other machinery to produce the finished product.
What are the benefits of CNC machining?
CNC machining offers several benefits over traditional manufacturing methods, including increased efficiency, greater precision, reduced waste, and improved production speeds.
What is the difference between CNC milling and CNC turning?
CNC milling involves using rotary cutters to remove material from a workpiece, while CNC turning involves rotating the workpiece and using a cutting tool to remove material. CNC milling is typically used for complex, multi-axis designs, while CNC turning is more suitable for cylindrical parts.
What is the maximum size of parts that can be produced using CNC machining?
The maximum size of parts that can be produced using CNC machining depends on the size of the machine being used. Some machines are designed to produce small, intricate parts, while others are capable of producing much larger parts.
How fast can CFS produce a part using CNC machining?
The time it takes to produce a part using CNC machining depends on a number of factors, including the complexity of the part, the size of the part, the material being used, and the accuracy and speed of the machine. Simple parts in CFS Machine shop can be produced in a matter of minutes, while more complex parts may take several hours or even days to produce.
What is the accuracy of CNC machining in CFS Machine Shop?
The accuracy of CNC machining depends on a number of factors, including the accuracy of the machine being used, the quality of the tooling, and the skill of the operator. In general, CNC machining in CFS is capable of producing parts with the tolerance ±0.005mm.
What industries use CNC machining?
CNC machining is used in a wide range of industries, including aerospace, automotive, medical device manufacturing, electronics, and more.