High quality CNC precision turning of aluminum ball – lightweight industrial parts
The CNC machining processes for aluminum spheres mainly include milling, ball polishing, and grinding, which are applied to different stages of sphere forming, such as roughing/finishing and improving surface quality.
How to Choose the Right Process?
The choice depends primarily on your machining goals, precision requirements, and production volume.
Which machining process should be chosen for pursuing ultimate precision and mass production?
Specialized ball milling technology and its complete equipment should be selected. This is a complete solution designed for high-volume, high-consistency production.
Which machining process should be chosen for single-piece or small-batch production of complex shapes?
A more economical option is a combination of milling and ball milling/spherical polishing.

High quality CNC precision turning of aluminum ball – lightweight industrial parts
What is milling used for?
Milling: Used for initial shaping.
What is ball milling used for?
Spherical milling: Used to quickly and significantly improve surface quality after milling, especially suitable for improving wear resistance.
What is ball polishing used for?
Spherical polishing: Used to achieve a mirror finish after ball milling, obtaining a lower surface roughness.
Which machining process should be chosen for machining free-form surfaces?
When performing ball milling or ball polishing, a five-axis CNC machining center is generally more effective than a three-axis one because multi-axis linkage can better maintain normal contact between the tool and the complex surface, resulting in a more uniform surface quality.
What are the key factors in optimizing process parameters?
For milling: Studies show that feed per bit is the most significant factor affecting surface roughness in slotting and side milling; a smaller feed rate yields a better surface finish. High-speed milling is a common strategy.
For ball milling: Milling force, feed rate, and machining pitch (step distance) are crucial. A study on Al-6061T6 yielded optimized parameters of: milling force 90 N, feed rate 300 mm/min, and pitch 200 μm.
For ball polishing: Spindle speed, feed rate, pitch, and depth of cut (polishing force) all influence the results. The same study provided optimized parameters of: spindle speed 12000 rpm, feed rate 40 mm/min, pitch 40 μm, and depth of cut 90 μm [citation-4]

We can provide more targeted process combination suggestions based on the specific application scenario of the customer’s aluminum balls and their specific requirements for precision and surface quality.
Company Profile
We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of market tempering and exploration, it has high-quality technical management personnel, experienced designers, R&D personnel and a perfect company management system cnc precision.
5-axis CNC workshop
Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment cnc precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment 
two-dimensional testing

cnc precision surface treatment
For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation
Product Packaging
Packaging Details
- Commercial packaging: 1pc/plastic bag + color box +carton + pallet;
- Industrial packaging: (1). plastic tube + carton + pallet; (2). plastic bag + kraft paper + carton + pallet;
- According to the requirement of customer.

FAQ
Q1: Where can I get product & price information?
A1: Send us an inquiry e-mail, we will contact you once we received your mail.
Q2: How long will I get the sample?
A2: Depends on your specific items, within 3-7 days generally.
Q3: What kinds of information do you need for a quote?
A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.
Q4: What are the payment terms?
A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.
Q5: How to deliver the goods?
A5: We deliver the products by courier company.
Q6: Are you a trading company or factory?
A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.
Q7: What shall we do if we don’t have drawings?
A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.
Q8: Can we get some samples before mass production?
A8: Absolutely yes.
Q9: Will my drawings be safe after sending them to you?
Q10: Is it possible to know the operation status of my products without visiting your company?
A10: We will offer a detailed production schedule and send weekly reports with digital pictures and videos which show the machining progress.
Q11: If you make poor quality goods, will you refund?
A11: In fact, we won’t take risks to produce poor-quality products. Meanwhile, we manufacture good quality products till you are satisfie