Product Description

Laser-Cut 304 Stainless Steel Tubing with Through-Holes, Threaded Base, and CNC Milled Features is an integrated, precision-manufactured structural and fluidic component. This part starts as standard 304 stainless steel tubing, which is then transformed using a combination of advanced processes: laser cutting creates precise through-holes or patterns in the tube wall; a solid threaded base (flange or connector) is either integrated via machining or welded on; and final critical dimensions, mounting features, or complex geometries are achieved through精密CNC milling. This multi-process approach results in a robust, ready-to-install component that combines the lightweight strength of tubular construction with the functionality of integrated mounting, porting, and connection capabilities.

Product Processing

1. Material Preparation & Primary Laser Cutting: 304 stainless steel tubing is cut to length. A CNC fiber laser cutter with rotary axis then cuts the specified through-holes, slots, or ventilation patterns around the tube's circumference. This step establishes the primary fluid/gas ports or structural cutouts.

2. Base Attachment & Preparation:

   • Option A (Integrated): A solid rod of 304 stainless is welded (TIG or laser) to one end of the tube to form a blank for the base.

   • Option B (Pre-fabricated): A pre-machined flange or threaded fitting is aligned and welded to the tube end.

3. Stress Relief (Optional but Recommended): After welding, the assembly undergoes a stress relief annealing cycle to minimize internal stresses that could cause distortion during subsequent精密machining.

4. CNC Milling of the Base & Critical Features: The welded assembly is fixtured in a multi-axis CNC milling machine. Key operations include:

   • Facing & Squaring: Creating a perfectly flat and perpendicular mounting surface on the base.

   • Thread Milling: Cutting precise internal or external threads (e.g., NPT, BSPP, UNF) into the base for secure connections.

   • Bolt Hole Circle (BHC) Drilling/Tapping: Machining a pattern of mounting holes in the base flange.

   • Precision Boring/Finishing: Sizing and finishing the inner diameter of the tube at critical interface points or the base port.

5. Deburring, Cleaning & Surface Finishing: All laser-cut and milled edges are deburred. The entire assembly is cleaned. A final surface treatment is applied, such as passivation for corrosion resistance or electropolishing for a clean, smooth finish.

6. Final Inspection & Testing: The component is inspected for hole pattern accuracy, thread fit (go/no-go gauges), flatness of the base, and overall dimensions. Pressure testing or leak testing can be performed if it is a fluid containment part.

Product Applications

• Fluid & Pneumatic Manifolds: Custom distribution blocks where the tube acts as a common rail with laser-cut ports for branch connections, and the milled base provides the main inlet/outlet with threaded ports.

• Machinery Guards & Enclosures: Ventilated tubular frames or handles where laser-cut holes provide airflow/lightweighting, and a milled threaded base allows for secure mounting to a machine body.

• Sensor Mounting Assemblies: A tube with laser-cut slots for cable egress and a milled, threaded base for screwing directly into a process line or vessel for sensor installation.

• Architectural & Furniture Fittings: Structural posts with decorative laser-cut patterns and a precision-milled, threaded base for secure floor or ceiling mounting.

• Automotive & Aerospace: Lightweight bracketry or ducting where the tube provides structure, holes are for weight reduction or ancillary attachments, and a milled flange allows for bolted assembly.

Product Technical Parameters (Detailed Table)