JS Precision: Custom CNC Machining – Milling, Turning & 5-Axis

Custom CNC machining is at the heart of modern precise production, but still, there are several challenges that businesses encounter.

An aerospace firm took months to develop key components, all of which went to waste because of a 0.01 mm tolerance difference from conventional machining, a medical device firm had to delay various product releases as it couldn't meet the timely delivery of small orders involving precision components.

These are very common scenarios—improper tolerance control, delay in deliveries, and cost overruns. These not only impact product performance but also hamper market competitiveness.

The issue originates with conventional machining techniques, which are based on single equipment or processes and make it hard to integrate precision and accuracy within intricate designs with the stability and efficiency associated with mass production.

At JS Precision, we offer highly reliable machining services ranging from proto-type production to mass production with multi-axis CNC technology integration and process designs. I will next elaborate on how fundamental CNC machining technologies effectively tackle these challenges and showcase their worth with case studies.

Core Answer Summary

Core Issues	Core Technologies	Core Advantages	Applicable Scenarios
High-Precision Parts Machining	Custom CNC machining	±0.003mm tolerance, stable batch production	Aerospace, Medical Equipment
Complex Component Formation	5 axis cnc machining	Single clamping, 40% efficiency gain	Turbines and components, engine mounting brackets
Small Batch Cost Control	Flexible production (Fast mold change and Modular fixtures)	25% savings on production cost per unit	1-50 custom parts

Why Trust This Guide?Practical Experience From JS Precision Experts

I have been very involved within the CNC machining services sector for 15 years. Since its founding, JS Precision has dedicated itself to custom CNC machining services, including CNC machining from prototype to mass production. We have serviced more than 2,000 customers within high-end industries, including aerospace, medical, and autos, for more than 5,000 projects.

It is an ISO 9001 and AS9100-certified company. It has an equipped production workshop with 30 5 axis cnc machining centers, 50 CNC milling machines, and precision turning tools. All these machines are precision-calibrated on a quarterly basis.

Our engineers have an average of 10 years of experience working with various industries. They have tackled and successfully solved the deformation issue for titanium alloy components for a prominent aerospace brand and offered highly precise machining services for minimally invasive surgical instruments for a medical device brand.

This guide represents more than abstract theoretical knowledge. It’s a summary of our experience with taking on various complex challenges. All recommendations and conclusions drawn here have been project-verified. That’s why you can be absolutely sure that all information provided within will help you with your own problems.

Would you like some access to some industry case studies? To get a free reference for a custom CNC machining solution and steer clear of unnecessary CNC machining steps, get in touch with JS Precision.

Custom CNC Machining - How It Addresses Problems Associated With Production Of Precision Components

Components demanding high precision, like Aerospace and Medical components, have very high core requirements:

Typically, aerospace parts would have to have tolerances comparable to micron levels (achieve +/–0.005mm) and be made from highly tough materials that can be able to withstand harsh working conditions. Biocompatibility standards would be applicable in medical device components.

Conventional machining processes are done manually and use single machines. The precision achieved will be low, and as a result, there may be instances where the product will not fit the specifications.

On the other hand, CNC machining uses automated programming and precise equipment to achieve stable machining. As a professional CNC machining service provider, JS Precision focuses on technologies like precision CNC turning and CNC milling machining.

We resolves problems associated with CNC machining in the following manners:

• Equipment collaborative linkage, combining milling machine with CNC and turning composite technology for complex parts.
• Personalized cutting parameters, optimal machining methods for various materials,
• Add a monitoring link to monitor the processing quality in real time.

Moreover, it makes it possible to control the fluctuation of tolerance within a range of ±0.003mm, thus eliminating problems with instability in quality for traditional machining.

What Are The Advantages And Applicable Scenarios Of CNC Milling Machining And Turning Technology?

CNC milling machining and turning are some of the main services offered by custom CNC machining. Both have their own specific benefits and applications. Below are the comparisons made in tabular form:

Technical Details	CNC Milling Machining	Accuracy CNC Turning
Machining Accuracy	±0.005mm	±0.003mm
Machining Efficiency	It can be used for machining small batches of intricate components.	It can be used for machining components that rotate.
Core Strengths	Able to make intricate curves on surfaces and grooves and irregular shapes.	Highly efficient and excellent surface finish on rotating components.
Common Use Examples	Medical device enclosures, aircraft structural components, engine components.	Vehicle drive shafts, hydraulic cylinders, precision bolts, bearings.

Practical process implementation should be based on these logics:

• Part structure: CNC milling machining capabilities include complex curved surfaces and irregular shapes.
• Production quantity per batch: Precision CNC turning can be advantageously employed for large production batches of rotary components.
• Accuracy requirements: Precision CNC turning can be more desirable if high precision is required.

JS Precision will combine various processes as required to achieve optimal precision and efficiency.

Figure 1:Numerical control milling technology has strong flexibility in processing fine and complex shapes. However, when dealing with hard materials, the speed may slow down due to increased tool wear and other factors.

Why 5 Axis CNC Machining Can Be Useful For Components With Complex Shapes?

Complex shaped components involving aerospace fan blades and turbines have been challenging subjects for conventional machining.

Typically, conventional three-axis machining requires several steps of clamping, meaning that apart from taking a considerable amount of machining time, there are high chances of accumulating errors because of repeated positioning. As a result, there will be inaccurate production.

The 5 axis CNC machining perfectly solves this problem through multi axis linkage, and its core advantages are reflected in:

• Synchronous linkage of several axes, enabling simultaneous movement of the X, Y, and Z linear axes and A and B rotary axes.
• Less clamping operation, from 3-4 times per traditional method to 1 time, fewer cumulative errors.
• Increased efficiency of forming, guaranteed single-pass forming of complex shapes.

At JS Precision, our 5 axis cnc machining services have a centering accuracy of ±0.002mm and are perfectly suited for machining aerospace CNC machining components with complex curved and hollow designs.

For instance, while machining turbine blades, our 5-axis machining capabilities result in an airfoil curve that perfectly matches the specifications and increases machining efficiency by 40% compared to traditional machining methods.

Figure 2: Five axis CNC machine tools can handle complex shapes and geometric structures that are difficult or even impossible to process with traditional three-axis machine tools.

How To Evaluate The CNC Machine Cost And Return On Investment?

In selecting custom CNC machining services, cost considerations include CNC machine cost and return on investment. The cost structure and JS Precision optimization procedures for CNC machining are as follows:

Cost Item	Percentage	JS Optimization Measures	Optimization Effect
Equipment Depreciation	30%	Customized machining solutions improve equipment utilization rate.	Equipment utilization rate increased by 20%.
Labor Costs	25%	Implementation of automatic production lines.	Reduce labor costs by 20%.
Material Loss	20%	Optimize cutting paths for optimal material cutting.	Reduce material loss by 15%.
Energy Consumption	15%	Smart control of device operating energy.	Reduce energy consumption by 12%.
Other Expenses	15%	Process standardization decreases waste associated with rework.	Reduce comprehensive costs by 8%.

The return on investment can be determined using a formula as follows: ROI =(cost savings+new revenue)/investment cost x 100%.

JS Precision previously aided an automotive components producer cut unit machining costs by 18%, and its investment in CNC machining service paid back within 8 months.As far as CNC machined parts price transparency, we offer very detailed cost breakdowns so that customers can see exactly where every dollar goes.

Ready to learn about CNC machine cost and ROI? Just provide your large orders and goals, and we will prepare a quotation and ROI calculation report so you can achieve cost control and optimize production.

JS Precision Aerospace Case Study: High-Precision Custom Engine Mount

Client Problem:

A prominent aerospace manufacturer had a tough challenge at hand, which included creating a titanium alloy engine mount that should reduce weight by 20% with a tensile strength of at least 1000 MPa.

The traditional welding forming process they previously used resulted in parts exceeding the weight limit (5 kilograms) and insufficient structural strength, which cannot meet the requirements of aircraft lightweighting and safety.

In addition, the welding process has a long production cycle and high scrap rate, seriously affecting the project schedule.

JS Precision Solution

Based on an understanding of customer needs, JS Precision suggested a solution involving 5 axis cnc machining and dynamic turning with these specific actions:

1. Material Optimization: The use of high strength titanium alloy Ti-6Al-4V, combining weight and strength.

2. Parameter Control: The cutting speed is controlled at 80 m/min, high-pressure cooling technology, cutting temperature control with real-time monitoring, and the use of diamond-coated tools.

3. Process Innovation: It reduces stress concentration and splicing mistakes by eliminating welding procedures and complements online dimensional checks and corrections.

4. Customized Fixtures: Special clamping fixtures are made so that accuracy will be obtained while machining.

Results and Value

Redesign enabled an engine bracket weight reduction of 23% from 5 kg to 3.85 kg, an increase in fatigue life by 50% from 1 million cycles to 1.5 million cycles, and compression of the delivery cycle by 30% from 45 days to 31 days. Regarding costs, there was an annual cost savings of 15%, with an average cost savings per year of $50,000.

This project fully demonstrates the advantages of aerospace CNC machining and custom CNC machining in solving complex problems.

Want to achieve similar machining precision as aerospace-grade precision machining? Please communicate your requirements and challenges with regards to your product performance, and we at JS Precision will specifically provide you with a professional aerospace CNC machining solution.

Figure 3: Aerospace titanium alloy bracket

How To Ensure Material Properties And Surface Treatment Quality In CNC Machining?

The properties of materials and the surface treatment process define the longevity and safety factors associated with precision CNC machined parts. Various materials have varying machining properties, whereby some machining techniques might cause materials to stress-deform or result in high surface roughness.

JS Precision has designed specific processing procedures for commonly processed materials:

• 6061-T6 Aluminum Alloy: By using the temperature controlled cutting technology of milling machine with CNC, the machining temperature is controlled below 50 ℃ to avoid thermal deformation.
• Ti-6Al-4V Titanium Alloy: Using a combination of low-speed cutting and high-pressure cooling.

Talking about surface treatment, we have the following services:

• Anodizing: Based on international standard ISO 7599:2018, the thickness for anodizing is 5-10µm, which enhances wear-resistant and
• Passivation treatment: Improvement of metal surface oxidation resistibility,
• Process of sandblasting: Improvement of surface texture and removal of burrs.

Below is a comparison of surface roughness data from machining with JS Precision and conventional machining:

Machining Material	JS Precision surface roughness (Ra)	Traditional machining surface roughness (Ra)	Improvement
6061-T6 Aluminum Alloy	0.4µm	1.6μm	75%
Ti-6Al-4V Titanium Alloy	0.5μm	1.8μm	72.2%
304 Stainless Steel	0.6μm	2.0μm	70%

We conduct strict testing on each batch of parts to ensure that the material properties and surface quality meet customer requirements.

Worried about your materials and surface finish processing quality? Download our CNC machined parts quality inspection manual from JS Precision and learn about our temperature-controlled cutting and subsequent processes so that you know what we do at JS Precision regarding your components' quality.

Figure 4: Various post-processing techniques can simulate the final appearance and performance of mass-produced parts during the prototype stage, further shortening the development cycle.

Small-Batch Production: Can Cost-Effectiveness From CNC Machining Be Realized?

A common misconception among several customers is that CNC machining service are meant for mass production alone. But this does not have to be so. JS Precision Pvt. Ltd. will enable flexible production and will make small orders proficient as well because custom CNC machining will be cost-effective. Its main benefits are:

• Rapid Mold Changeover Technology: Achieving a mold changeover period of less than 30 minutes compared with 2 hours, thus greatly enhancing efficiency for small production orders.
• Modular fixtures: Up to 80% versatility – reusable for various components, thus lowering costs for special fixtures.

The cost distribution data for orders below 50 pieces for JS Precision is as follows:

Batch Size	Material Cost Percentage	Labor Cost Percentage	Equipment Depreciation Cost Percentage	Other Expenses Cost Percentage	Average Unit Cost (USD)
1-10 pieces	38%	28%	22%	12%	120
11-30 pieces	40%	23%	25%	12%	85
31-50 pieces	42%	20%	26%	12%	75

Data analysis reveals that with an increase in moderate size for small batches of orders, there will be a significant reduction in unit costs and overall costs will be significantly lower compared with the industry average. Industry average unit costs for orders with less than 50 pieces are about 100-150 dollars.

Which Basic Capabilities Should Be Evaluated To Select A CNC Machining Service Provider?

It is paramount that the CNC machining service provider be carefully selected. At JS Precision, it is firmly believed that judging should be done on three main criteria:

Equipment Precision and Certification

Suppliers should have advanced machining equipment and related quality certifications. For instance, certification with ISO 9001 guarantees production on a standard basis, and it is imperative for suppliers who deal with the aerospace sector to be certified with AS9100.

Equipment calibration at JS Precision is done on a quarterly basis, and all products are inspected three times (raw materials, processing, and finished product) for accuracy.

Industry Case Matching

It would be preferred if suppliers have a rich background in your sector. For instance, suppliers working with aerospace CNC machining have more precise requirements compared to common components. It is thus imperative for suppliers to have project experience.

JS Precision has worked with more than 500 clients from the aerospace and medical industries. The case library contains different scenarios.

After Sales Services and Technical Services

It will be necessary for high-quality suppliers to offer value-added services like DFM analysis for free.

At JS Precision, we offer all our customers DFM reports for free. The DFM report helps optimize designs with a focus on machining. We also have an after-sales service with a 24-hour response rate. All issues experienced by our customers are tackled within 24 hours.

Looking for a trustworthy CNC machining service supplier? We have a list of requirements for CNC machining suppliers. As a professional 5 axis cnc machining service provider, we at JS Precision will make your CNC machining experience completely hassle-free.

FAQs

Q1: What is the minimum tolerance for CNC machining?

Having multi-axis CNC machining systems, JS Precision can attain a tolerance accuracy of ±0.005mm. It meets the very tough tolerance requirements necessary for aerospace components.

Q2: Can 5 axis cnc machining be done on aluminum alloys?

Yes, 5 axis cnc machining can be effectively used for efficient cutting on complex curved surfaces made from aluminum alloys. It reduces the number of clamping processes with multi-angle linkage and avoids deformation with temperature control cutting.

Q3: Do small orders have a minimum amount that can be ordered?

At JS Precision, there are no set orders for purchases, and we allow orders as low as 1 piece. Additionally, for small orders, multiple orders can be made. We offer a competitive discount rate for large orders.

Q4: How do you protect your intellectual property from leaks?

Prior to cooperation, we enter into a confidentiality agreement (NDA) with our clients. Customized components are manufactured on dedicated production lines and with an encrypted data-management system to make sure that no leakages of customer designs occur.

Q5: Is there a compensation service for delay in delivery?

Delivery guarantee clauses would be clearly stipulated within our contract. We would be responsible for paying compensation on a daily basis if there were any postponements related to our side. Our previous historical percentage for on-time deliveries exceeds 98%, thus ensuring smooth progress within your projects.

Q6: Do you have free DFM services (Manufacturability Analysis)?

Yes, we offer a DFM analysis report for free. The engineers will analyze your part design and offer suggestions on optimizing it so as to make it easier and less expensive to manufacture.

Q7: Do you offer logistics services and customs clearance for foreign customers?

We offer global logistics and distribution services as well as professional customs clearance assistance. We have served more than 50 clients from North America and Europe, and we have ample experience working with foreign parties.

Q8: What information should be supplied for a quotation involving complex components?

To get an immediate quote, we will require some information from you, such as your part drawings/3D models, materials, production quantities, and surface treatment needs. We will get back with a detailed quote within 2 hours.

Conclusion

Custom CNC machining services are developing with an increase in accuracy, adaptability, and competition and will be an important driving force helping enterprises get rid of production bottlenecks.

At JS Precision, we bring together technologies like CNC milling machining, precision CNC turning, and 5 axis cnc machining and industry expertise. We offer comprehensive CNC machining services.

Whether it be precision components machining, cost-effective production with small batches, or complex structure forming, we have been equipped with adequate capabilities and knowledge to offer specific solutions.

If you need personalized machining solutions and DFM analysis for free, please contact us at once. Just click on 【Get Quote】to put your demands, and we will get back within 24 hours. We will make your product develop with more efficient and upgraded methods.