Tube rolling & longitudinal seam welding (for large diameters)
Tube rolling & longitudinal seam welding (for large diameters) capability for titanium components
What is Tube rolling & longitudinal seam welding (for large diameters)?
Tube rolling & longitudinal seam welding (for large diameters) capability for titanium components
Certified welding capability for Tube rolling & longitudinal seam welding (for large diameters), with full inert gas shielding, weld procedure qualification, and operator certification.
Engineering Parameters & Capabilities
Gas Tungsten Arc Welding (GTAW/TIG) for titanium uses a non-consumable tungsten electrode with argon shielding at the torch face, trailing shield, and backup purge. Titanium's reactivity above 600°C demands complete oxygen exclusion until the weld zone cools below 300°C, specifically for tube. Large tubes for chemical, aerospace, and medical applications present unique challenges: wall thickness uniformity (±0.05 mm) over long lengths, internal surface finish Ra < 0.8 µm for fluid flow, and bent tube ovality control.
| Parameter | Specification |
|---|---|
| Heat Input | Low — narrow HAZ (1–3 mm) |
| Shielding | Argon face + trailing shield + backup purge |
| Weld Speed | 100–300 mm/min (manual); 1000 mm/min (orbital) |
Engineering Capabilities & Limits
Certified welding capability for Tube rolling & longitudinal seam welding (for large diameters), with full inert gas shielding, weld procedure qualification, and operator certification.
Hole Types Supported
Heat Control Measures
Triple-shield argon protection: torch nozzle, trailing shield (10–20 L/min), and backup purge. Interpass temperature is monitored with an IR pyrometer; max 120°C between passes.
Flatness & Stress Relief
Welding fixture with copper backup bars for heat sinking. Sequenced stitch welding pattern to balance thermal stresses.
Tolerance
Weld distortion: +0.5 mm typical; +0.1 mm with fixture
Typical Applications & Components
This process is used to manufacture the following titanium components.
Secondary Operations & Downstream Processing
Enhance your component with our integrated downstream services:
Dye Penetrant Inspection
PT per ASTM E1417 for weld surface defects.
Weld Color Inspection
Classification per AMS 4901: silver/gold acceptable; blue/purple rejected.
Tube Bending
Tube bending for tube rolling and longitudinal seam welding of large-diameter components.
Weld Preparation (End Bevelling)
Weld preparation (end bevelling) for tube rolling and longitudinal seam welding of large-diameter components.
Hydrostatic Pressure Test
Hydrostatic pressure test for tube rolling and longitudinal seam welding (large diameter) components.
Quality Assurance & Inspection
Inspection Items
- Tube rolling & longitudinal seam welding (for large diameters) specific dimensional verification (CMM / vision)
- Material grade verification (PMI / OES spectrometer)
- Fluorescent Penetrant Inspection (FPI) per ASTM E1417
- Biocompatibility validation per ISO 10993
Quality Standards & Certifications
- ISO 9001:2015 — Quality Management System
- AS9100D — Aerospace Quality Management
- ASTM B265 — Titanium Strip, Sheet, and Plate Standard
- ISO 13485 — Medical Device Quality Management
Frequently Asked Questions
What titanium grades are suitable for Tube rolling & longitudinal seam welding (for large diameters)?
What tolerances can be achieved with Tube rolling & longitudinal seam welding (for large diameters)?
What quality certifications apply to Tube rolling & longitudinal seam welding (for large diameters)?
What is the typical lead time for Tube rolling & longitudinal seam welding (for large diameters) projects?
Can you provide DFM feedback for my Tube rolling & longitudinal seam welding (for large diameters) design?
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One Metal. One Focus. Infinite Precision.
Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.
Boze CNC Ti is the dedicated titanium manufacturing center of Baoji Boze Metal Products Co., Ltd.