BOZE CNC Ti | Machining

Cold heading of hex nuts + CNC tapping

Cold heading of hex nuts + CNC tapping capability for titanium components

Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, Grade 9, Grade 23 Common Grades

Up to Ø600 mm × 400 mm Thickness Range

±0.01 mm (positional) / ±0.02 mm (contour) Cutting Tolerance

±0.01 mm (positional) / ±0.02 mm (contour) Tolerance

Ra 0.8 µm (standard) / Ra 0.2 µm (precision) Surface Finish

Titanium Cotter Pin (DIN 94) Titanium Countersunk Screw (ISO 10642) Titanium Flat Washer (ISO 7089) Titanium Hex Bolt (ISO 4014) Titanium Hex Nut (ISO 4032) Titanium PEEK-Insulated Hybrid Bolt

What is Cold heading of hex nuts + CNC tapping?

Cold heading of hex nuts + CNC tapping capability for titanium components

Precision machining capability for Cold heading of hex nuts + CNC tapping, utilizing multi-axis CNC centers with in-process inspection and SPC quality control.

Engineering Parameters & Capabilities

5-axis CNC milling centers provide simultaneous multi-axis interpolation for complex titanium components. The ability to tilt the tool relative to the workpiece surface maintains optimal chip load and extends tool life, critical for difficult-to-machine titanium alloys, specifically for pin. Precision pin for Fastener, Medical present unique challenges: Cylindrical OD tolerance ±0.005 mm with chamfer/radius control. Tight straightness (< 0.02 mm over 50 mm) for press-fit applications.

Parameter	Primary Method	Alternative Method
Kinematics	Full 5-axis simultaneous interpolation	3+2 positional indexing
Surface Finish	Ra 0.8 µm standard; Ra 0.2 µm with finishing pass	Ra 1.6–6.3 µm
Tool Access	Unrestricted — tool can approach from any angle	Limited — each setup indexes the part

Engineering Capabilities & Limits

Precision machining capability for Cold heading of hex nuts + CNC tapping, utilizing multi-axis CNC centers with in-process inspection and SPC quality control.

Hole Types Supported

Coolant passages Threaded holes at compound angles Counterbored fastener holes

Heat Control Measures

High-pressure coolant-through-spindle (50–70 bar) with coated carbide tooling. Adaptive trochoidal milling paths reduce radial engagement to control heat generation.

Flatness & Stress Relief

Stress-relieved raw material and sequenced roughing/finishing passes. Heat-sink fixturing for thin-wall sections minimizes thermal distortion.

Tolerance

±0.01 mm (positional) / ±0.02 mm (contour)

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:

Deburring

Manual or robotic deburring of sharp edges and thread protection.

Centerless Grinding

Centerless Grinding for cold heading of hex nuts + cnc tapping components.

Chamfering

Chamfering for cold heading of hex nuts + cnc tapping components.

Quality Assurance & Inspection

Inspection Items

Cold heading of hex nuts + CNC tapping specific dimensional verification (CMM / vision)
Material grade verification (PMI / OES spectrometer)
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 Cold heading of hex nuts + CNC tapping?

Cold heading of hex nuts + CNC tapping can be performed on Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, and other grades. The specific grade selection depends on the required mechanical properties, corrosion resistance, and end-use application requirements.

What tolerances can be achieved with Cold heading of hex nuts + CNC tapping?

Typical achievable tolerances for Cold heading of hex nuts + CNC tapping are ±0.01 mm (positional) / ±0.02 mm (contour). Tighter tolerances may be possible depending on part geometry, material condition, and quantity. Our engineering team reviews each project to determine the optimal tolerance-cost balance.

What quality certifications apply to Cold heading of hex nuts + CNC tapping?

All Cold heading of hex nuts + CNC tapping operations are performed under ISO 9001:2015 — Quality Management System, AS9100D — Aerospace Quality Management, ASTM B265 — Titanium Strip, Sheet, and Plate Standard certified quality management systems. Full traceability documentation, material certifications (EN 10204 3.1), and inspection reports are provided with each shipment.

What is the typical lead time for Cold heading of hex nuts + CNC tapping projects?

Lead times for Cold heading of hex nuts + CNC tapping vary by complexity and quantity. Prototype quantities (1-10 units) can typically be completed in 3-7 business days. Production quantities require 15-25 business days. Rush orders are available for qualifying projects. Contact our sales team for a specific timeline.

Can you provide DFM feedback for my Cold heading of hex nuts + CNC tapping design?

Yes. We provide free Design for Manufacturability (DFM) analysis for all new projects. Simply upload your CAD file (STEP, DXF, or DWG format) and our engineering team will review your design and provide optimization suggestions within 24 hours.

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Centerless grinding of core taper capability for titanium components

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CNC cutting / profile cutting capability for titanium components

About Boze Titanium Manufacturing Center

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.

AS9100D ISO 13485 ISO 9001 500+ Clients 15+ Years OEM/ODM

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