Equipment and Production Process

Titanium Clad Copper Production Process

1. Raw Material Preparation

1) Copper Core

Select high-conductivity copper such as T2 or TP1/TP2.

Requirements: free from cracks, slag inclusions, and with low impurity content.

2) Titanium Cladding

Common grades: pure titanium TA1, TA2 or titanium alloys such as Gr1, Gr2.

Titanium plates, tubes, or strips are selected according to the product shape.

3) Surface Treatment

To ensure a strong metallurgical bond, the surfaces must be thoroughly cleaned:

Mechanical grinding

Chemical pickling

Degreasing and removal of oxide layers

This ensures a clean and properly roughened surface on both titanium and copper.

2. Cladding (Key Processes)

Titanium clad copper is mainly produced by two composite technologies:

①Explosion Bonding + Hot Rolling—Most Common, Highest Bonding Strength

Process Steps:

Stack titanium plate and copper plate according to the required ratio

Lay explosive materials on the titanium surface

Initiate the explosion to generate high-energy instantaneous pressure

Titanium layer impacts the copper surface at high velocity, forming a metallurgical bond

The bonded billet is then hot-rolled through multiple passes to achieve uniform bonding and required thickness

Features:

Strong and reliable metallurgical bond, no delamination

Suitable for large-size plates and bus bars

②Hot Extrusion / Cold Drawing Method (Used for Bar, Rod, and Tubes)

Applicable To: rods, wires, tubes

Process Steps:

Insert the copper rod into a titanium tube or titanium sleeve

Perform hot extrusion to form an integral composite billet

Follow with cold drawing to achieve precise dimensions and smooth surface finish

Apply heat treatment to relieve internal stress

Features:

High dimensional accuracy

Excellent surface quality

Commonly used for titanium clad copper bars, wires, and anode rods

3. Straightening & Heat Treatment

Annealing to relieve internal stress

Straightening and shaping to required tolerance

Ensures good conductivity and bending performance

4. Ultrasonic Testing & Non-Destructive Inspection (NDT)

To ensure the bonding interface is free of porosity, delamination, or inclusions.

Inspection methods include:

Ultrasonic testing

Eddy current testing

X-ray inspection (for high-standard applications)

5. Finished Machining & Surface Treatment

According to customer requirements, the following processes can be performed:

Turning, milling, and other machining

Polishing

Degreasing and acid pickling

Cutting to specified dimensions

Custom titanium copper according to your request: drilling, bending, forming, threading, etc.

6. Final Inspection

Products can be inspected by customer-appointed third-party inspection agencies before shipment.

7. Shipping

After final quality confirmation, products are packaged and shipped according to customer requirements.