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Custom Online CNC Machining Services

Get instant quotes and fast-turn production for precision metal and plastic parts. Yicen delivers high-accuracy components through advanced 3-axis, 4-axis, and 5-axis CNC machining, achieving tolerances down to ±0.001 in (±0.025 mm) with consistent, repeatable quality across prototypes and production runs.

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ISO 9001:2015 | AS9100D | ISO 13485 | ITAR Compliant

Yicenprecision Instant Quoting Engine is covered by U.S. Pat. Nos. 11,086,292, 11,347,201, 11,693,388, 11,698,623, 12,099,341, and 12,189,361. Other patents pending.

Why Choose Yicen Precision to CNC Machining?

Yicen provides high-quality and tight-tolerance machining that is backed by elaborate equipment, engineering skills and approved quality control. All components are manufactured with precision, consistent lead times and dependable worldwide supply.

Unmatched Accuracy

Multi-axis machining to within +-0.001 in (+-0.025 mm) and consistent GD&T compliance on both metals and plastics.

DFAM Support (Driven by engineering).

Your CAD is evaluated by senior engineers, geometry is optimized, and better-performing and less expensive materials and toolpaths are suggested.

Quick TT and Mass Production.

Machining centers with high capacity allow quick prototyping, low volume production, and any scale of production without delays.

80+ Certified Materials

Aluminum, steel, stainless, brass, copper, titanium, engineering plastics, high-temp polymers, and demand sourcing.

Qualified Quality Assurance.

CMM inspection, ISO compatible workflows, dimensional reports and aerospace, medical and industrial traceability.

Consistent Customer Service

Transparency with projects, safety in file management, and uninterrupted global shipping with engineering support at all levels.

CNC Machining Capabilities for Custom Precision Parts

With our developed manufacturing capacity, we will be able to produce high-precision metal and plastic parts, which produce the same level of consistency in the quality of prototypes, tooling, and full production. Having started with multi-axis milling, Yicen Precision has ensured reliability in the results even with most complex geometries, in terms of turning and development of the fixtures.

Precision Sheet Bending

Custom Sheet Metal Bending for Complex Geometries

Our custom sheet metal bending services transform flat sheets into precise forms with unmatched repeatability. Leveraging CNC press brakes and expert tooling selection, we handle intricate shapes, multi-bend components, and assemblies requiring strict angle and radius accuracy. Perfect for stainless steel, aluminum, and mild steel parts, our process ensures consistent quality from the first piece to the last.

Tolerance Table for Bending

Parameter Specification
Dimensional Tolerance ±0.25 mm to ±0.5 mm
Bend Angle Tolerance ±0.5° to ±1.0°
Bend Radius Tolerance ±0.25 mm
Flange Length Tolerance ±0.5 mm
Material Thickness Range 0.5 mm to 12 mm
Springback Compensation Applied based on material type

Surface Finishing for Sheet Metal Bending

Yicen Precision offers a variety of finishing services designed to meet your project’s specific needs.

Deburring
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Removes sharp edges and burrs created during cutting to improve safety and provide a clean, finished look.

Bead Blasting
cnc aluminum anodizing

 Uses high-pressure blasting with fine media to create a smooth, matte surface. Ideal for achieving a uniform finish and removing minor imperfections.

Chemical Cleaning (Pickling)
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Removes oxidation, scale, and surface contaminants to restore and prepare metal surfaces after cutting.

Brushing
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 Applies a uniform, subtle texture using abrasive brushes for an attractive and tactile surface.

Polishing
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Mechanically smooths surfaces to achieve a high-gloss, reflective finish—ideal for decorative or consumer-facing parts.

Tumbling
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Smooths and rounds edges of small parts by vibrating them with abrasive media, improving finish and handling safety.

Powder Coating
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Applies a durable, protective coating that improves corrosion resistance and allows for various color options. Perfect for functional and aesthetic applications.

Anodizing
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 Adds a corrosion-resistant oxide layer to aluminum parts and enables a range of color options for both protection and aesthetics.

Precision Sheet Metal Forming for Tight-Tolerance Parts

With advanced sheet metal forming services and controlled bend radius techniques, we manufacture brackets, enclosures, and engineered components within demanding tolerance ranges. Our process accounts for springback, material thickness variations, and complex bend sequences, ensuring stable geometry and immediate assembly compatibility.

Roll Forming Equipment

Materials for Bending

Engineers and leading manufacturers trust Yicen Precision for fast iterations and durable, high-performance parts. Whether for prototyping or full-scale production, our extensive material selection ensures precision, strength, and reliability for any CNC machining project.

5052
6061
3003

304
316
430

A36
1018
1020

G90
G60

1095
1075

C110
C122

C260
C360

Grade 2
Grade 5 (Ti-6Al-4V)

Precision Sheet Metal Bending for Clean, Accurate Angles

Experience high-accuracy sheet metal bending services engineered for clean angles, uniform bends, and flawless dimensional control. From prototype brackets to production-ready enclosures, our precision sheet metal bending ensures consistent geometry, tight bend radii, and exceptional repeatability. 

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Transform Concepts into Precision Parts

We specialize in converting your ideas into high-quality, functional components with unparalleled speed and accuracy. With advanced technology and expert craftsmanship, we create parts that meet the most complex specifications.

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The Sheet Metal Bending Process Explained

Sheet metal bending transforms flat metal sheets into accurate 3D components using CNC-controlled press brakes. At Yicen Precision, we manage every technical aspect from bend angle tolerance to springback control to deliver consistent, tight-tolerance results across materials like aluminum, stainless steel, and cold-rolled steel.

1. Material Selection & Preparation

We select the ideal material (aluminum, stainless steel, mild steel) based on ductility, thickness, and bend performance to prevent cracking or deformation during forming.

2. CAD Modeling & Bend Planning

Engineers generate precise CAD models and flat-pattern layouts, calculating bend allowance, bend radius, and relief features to ensure dimensional accuracy.

3. CNC Machine Setup

Using programmable CNC press brakes, we configure tooling (V-dies, air bending tools, radius dies) to achieve exact bend dimensions with tolerances as tight as ±0.5 mm.

4. Sequential Bending Execution

Each bend is executed with controlled force and positioning. For multi-bend sheet metal parts, we use simulation and automated back-gauging to maintain alignment and consistency.

5. In-Process Inspection

Angle gauges and digital measurement systems monitor bend angle tolerance in real time, allowing immediate adjustments for perfect accuracy.

6. Final Quality Check & Surface Protection

Every bent sheet metal component undergoes a final dimensional check. Protective tooling and soft jaws prevent surface marks, ensuring clean finishes on sheet metal brackets and sheet metal enclosures.

Common Challenges in Sheet Metal Bending (and How They’re Prevented)

Material Springback

Challenge: Metals tend to rebound after bending, affecting angle accuracy.
Solution: Adjusted CNC programming and over-bending compensate for elastic recovery.

Cracking or Fracturing

Challenge: Tight radii or hard materials may crack.
Solution: Optimized bend radius selection and appropriate tooling prevent failure.

Inconsistent Bend Angles

Challenge: Manual operations cause variance.
Solution: CNC automation guarantees repeatable, uniform production quality.

Surface Scratches or Marks

Challenge: Tooling may mark finished surfaces.
Solution: Use protective films, brush dies, and post-finishing processes.

Complex Multi-Bend Designs

Challenge: Multi-step bending can compound errors.
Solution: Advanced sequencing and tooling simulation ensure perfect alignment.

Yicen Machining Solutions

Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Yicen machining services offer the flexibility you need.
CNC Machining Services
Rapid Prototyping

CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Yicen, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.

CNC Machining Services
Low Volume Manufacturing

Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With Yicen, this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.

CNC Machining Services
End-use Production

CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Yicen delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.

Insights & Articles

Explore Machining services blog for expert insights on CNC machining, industry trends, manufacturing tips, and technology updates—designed to keep you informed, inspired, and ahead in precision engineering.

Frequently Asked Questions

Bending

  • What thicknesses of sheet metal can you bend?

    We typically bend sheets from 0.5 mm up to 10 mm thick, depending on the material. 

  • Do you provide custom bends?

    Yes, we handle custom angles, radii, and complex geometries. 

  • Is there a limit to the part size?

    We can bend sheets up to 3 meters long depending on material thickness. 

  • Do you assist with design for manufacturability?

    Yes, our engineers help ensure your designs are bend-ready. 

  • Can you do multiple bends on one part?

    Absolutely, we can program multiple bends into a single part. 

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Prompt response guaranteed within 12 hours
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