CNC Turning And Milling Combined Process - Stainless Steel Flange Internal Thread Sleeve Connection Seat

CNC Turning And Milling Combined Process - Stainless Steel Flange Internal Thread Sleeve Connection Seat

Product Overview

This CNC Turning and Milling Combined Process Stainless Steel Flange Internal Thread Sleeve Connection Seat is a high-precision integrated component designed for reliable mechanical connections and structural mounting applications. Manufactured using advanced turn-mill compound machining technology, this component combines a flange base, a sleeve body, and a precision internal thread into a single, seamless unit—eliminating the need for multiple separate parts and significantly improving assembly efficiency, structural integrity, and alignment accuracy

Key Features

Technical Specifications

Advantages of Combined Turning and Milling Process

Traditional manufacturing methods typically require separate operations:

• First, turning on a lathe to create the sleeve body and flange diameter

• Second, transferring to a milling machine for flange features, bolt holes, or flats

• Multiple setups introduce alignment errors and increase production time

With CNC turning and milling combined processing:

• All operations are completed in one clamping cycle

• Concentricity between the internal thread, sleeve bore, and flange mounting face is inherently accurate

• Angular positioning of flange holes relative to thread orientation is precisely controlled

• Lead times are significantly reduced

• Unit costs are optimized for medium to high volume production

Applications

This flange internal thread sleeve connection seat is widely used in:

Customization Options

We offer full OEM and ODM services. The following aspects can be customized according to your drawings or samples:

• Dimensions: Outer diameter, inner diameter, flange thickness, overall length

• Thread Specifications: Type, size, pitch, and fit class

• Flange Design: Bolt hole pattern, counterbores, chamfers, or special mounting features

• Stainless Steel Grade: SS304, SS316, 17-4PH, or other alloys

• Surface Treatment: Machined, polished, passivated, electropolished, or coated

• Markings: Laser engraving, part numbers, or logos

Quality Assurance

Each component undergoes rigorous quality control to ensure:

• Dimensional Accuracy: Verified using CMM (Coordinate Measuring Machine), optical comparators, and precision gauges

• Thread Quality: Inspected with go/no-go thread gauges and optical thread measurement systems

• Surface Finish: Checked with surface roughness testers

• Material Integrity: Material certifications and mill test reports available upon request

• First Article Inspection (FAI): Full dimensional report provided for initial production runs

We maintain ISO 9001:2015 certified quality management systems to ensure consistency from prototype through mass production.

Ordering and Technical Support

To initiate a quotation or discuss your specific requirements, please provide:

1. Technical Drawing (PDF, DWG, or DXF) with dimensions, tolerances, and thread specifications

2. 3D Model (STEP, IGES, SolidWorks, or other formats) if available

3. Material Grade and any surface finish requirements

4. Quantity (prototype, trial order, or estimated annual volume)

5. Special Requirements (packaging, certifications, inspection documentation)

Our engineering team reviews each inquiry to provide manufacturability feedback and optimize design for cost-effective production.

FAQ

1. What is CNC turning and milling combined processing, and why is it used for this product?

CNC turning and milling combined processing (also known as turn-mill compound machining) is a manufacturing method that performs both turning and milling operations on a single machine in one clamping cycle.

For this flange internal thread sleeve connection seat, this process is critical because:

• Turning creates the cylindrical sleeve body, flange diameter, and internal bore

• Milling machines the flange face, bolt holes, flats, or other non-rotational features

• Threading can be performed via tapping or thread milling within the same setup

By completing all operations without repositioning the workpiece, we achieve superior concentricity between the internal thread, sleeve bore, and flange mounting face—a key requirement for precision connection applications.

2. What stainless steel grades are available?

We offer a range of stainless steel grades to suit different application requirements:

Other materials including carbon steel, brass, aluminum, or specialty alloys can be accommodated upon request.

3. What internal thread types can you machine?

We support a comprehensive range of internal thread specifications:

Thread fit classes (e.g., 6H for metric, 2B for unified) can be controlled to meet your assembly requirements.

4. What tolerances can you achieve with the combined turning and milling process?

Due to the single-setup nature of turn-mill compound machining, we maintain tight tolerances across all features:

For critical applications, we can achieve tighter tolerances down to ±0.005 mm. Final tolerance specifications should be clearly indicated on your drawing.

5. Can you manufacture to custom dimensions and designs?

Yes. This is a custom-machined component. We manufacture strictly according to:

• 2D engineering drawings (PDF, DWG, or DXF formats) with dimensions, tolerances, and thread specifications

• 3D CAD models (STEP, IGES, SolidWorks, or other formats)

• Physical samples (reverse engineering services available)

We offer OEM and ODM services with no minimum order quantity for prototypes. Our engineering team can also provide design for manufacturability (DFM) feedback to optimize your design for cost and quality.

6. What surface treatments and finishes are available?

Depending on the application requirements, we offer various surface finishes:

7. How do you ensure quality control?

Our quality management system is ISO 9001:2015 certified. The quality control process includes:

• First Article Inspection (FAI) : Complete dimensional inspection of the first piece against all drawing specifications before production begins

• In-Process Inspections : Operators monitor critical dimensions at defined intervals during machining

• Final Inspection : Using CMM (Coordinate Measuring Machine), optical comparators, thread gauges, plug gauges, and surface roughness testers

• Material Certification : Mill test reports and material certifications available upon request

• Inspection Reports : Full dimensional reports can be provided with each shipment

All thread features are inspected using go/no-go thread gauges to ensure proper fit and function.

8. How are the parts packaged for shipment?

We provide secure packaging to ensure parts arrive in perfect condition:

• Individual protection : Anti-rust paper or VCI (vapor corrosion inhibitor) bags for stainless steel and other metal parts

• Internal packaging : Foam-lined boxes or compartment trays for precision components to prevent surface damage

• Outer packaging : Standard export cartons, plywood cases, or pallets depending on order size and destination

• Custom labeling : Barcode labels, part number markings, or assembly-ready trays available upon request

9. How do I request a quote?

To provide an accurate and timely quotation, please submit:

1. Technical drawing (PDF, DWG, or DXF) with dimensions, tolerances, thread specifications, and material callouts

2. 3D model (STEP, IGES, SolidWorks, or other formats) if available—this helps us verify geometry and tooling requirements

3. Quantity (prototype, trial order, and/or estimated annual volume)

4. Material grade and any surface finish requirements

5. Special requirements (packaging, certifications, inspection documentation)

You can contact us via the platform messaging system or email with the above details. We typically respond with pricing and lead time within 24–48 hours.