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Lithium battery casing
Sheet Metal Processing
New Energy Series
Classification project Content Description
Basic Information Product Name Lithium battery pack metal casing

 

Processing technology Laser cutting → CNC bending → riveting/welding → polishing → spraying/oxidation (sealing solutions can be customized)
Origin Logistics Production address Cangzhou, China (Hebei Province)

 

Shipping Port Tianjin Port (supporting national logistics and overseas exports)
Technical Specifications Dimensions Support customization of different module specifications (customers need to provide structural drawings or cell layout drawings)

 

Material selection Aluminum alloy (commonly used 5052, 6061) / stainless steel (supports lightweight and corrosion-resistant design)

 

Surface treatment Anodizing / spraying / brushing / conductive oxidation (balancing strength and insulation)
Customized services Color support Metallic color / Gray silver / Black / Other colors support Pantone customization

 

OEM deep customization Support IP65 protection customization, heat dissipation structure design, and battery cell/module adaptation solution development

 

LOGO craft Silkscreen printing / laser engraving / nameplate label (supports model serial number)
Supply Capacity Packaging Anti-static bag + customized pearl cotton inner tray + carton / wooden box (to ensure transportation safety)

 

Minimum Order Quantity (MOQ) Minimum order quantity: 1 piece (supports sample development and verification)

 

Delivery cycle Small batch proofing 7-10 days / Mass production 7-15 days according to structural complexity
Application Adaptation Core application scenarios Energy storage systems / electric two-wheelers / power tools / industrial power boxes / communication base station backup battery modules

 

Adapt to customer industry Lithium battery manufacturers / energy storage system integrators / electric vehicle manufacturers / energy and communications industry customers
Process Flow
Process Flow
Design Review
Review
Analysis
Chat
Prep & Confirm

Detailed analysis of design drawings provided by the client and confirmation of processing plan

Material Selection & Cutting

Select appropriate materials according to design requirements

CNC Bending Forming

Welding & Assembly

Surface Treatment

Custom Labels

Cutting with laser cutting, stamping, or high-precision laser pipe cutting machines

CNC bending machine for accurate bending (sheet material)

Fully automatic pipe bending machine for one-time bending (pipe material)

Forming precision up to ±0.1mm

Welding Process

MIG, TIG, Laser Welding, Spot Welding

Applicable Materials

Galvanized sheet, cold plate, aluminum plate, stainless steel plate

Treatment Methods

Electrostatic Spraying, Galvanizing, Anodizing, Electrophoretic Coating, etc.

Advantages

Improves product corrosion resistance and aesthetics

Silk screen printing or U-printing technology

Can make LOGO, functional labels, and decorative patterns

Core Process Details
-01
Cutting Process
Laser Cutting
  • Applicable Scenarios

    Complex Patterns, High Precision Requirements

  • Features

    Precision ±0.05mm, Smooth Surface

Plasma Cutting
  • Applicable Scenarios

    Workpieces with Thickness < 40mm

  • Features

    Fast Cutting Speed, Smooth Surface

Water Jet Cutting
  • Applicable Scenarios

    Any Engraving, Mainstream Industrial Cutting

  • Features

    Low Cost, Easy Operation

-02
Sheet Metal Bending
-- Equipment --
CNC Bending Machine + Custom Molds
-- Formable Shapes --
U Shape, V Shape, Channel Shapes
-- Precision --
±0.1mm
-03
Welding Process
-- Types --
TIG/MIG Welding, Arc Welding, Robotic Automatic Welding
-- Inspection Standards --
JB/T 4709 or AWS D1.1
-- Quality Requirements --
Full Weld, No Void, Pore, or Crack
-04
Other Processes
Punching

Supports 0.5-6mm Sheets

High Hole Position Accuracy

Riveting

Pressure or Pull Riveting Process

No Damage to Surface Coating

Stamping

High-Speed Molding

Supports Complex Shapes

Polishing

Remove Weld Slag, Burrs

Ensure Smooth Surface

Material Selection Guide

Aluminum Alloy

Stainless Steel

Carbon Steel

Galvanized Steel

Titanium Alloy

Aluminum-Magnesium Alloy

Aluminum Alloy

5052/6061/7075
Features: Lightweight, Corrosion-Resistant, Easy to Process
Applications: Lightweight Equipment, Electronic Heat Dissipation Parts

Stainless Steel

304/316
Features: Corrosion-Resistant, Aesthetic
Applications: High-End Sheet Metal Products, Food and Medical Equipment

Carbon Steel

Q235/45#
Features: High Cost-Performance, Good Strength
Applications: Household Appliance Enclosures, Outdoor Equipment

Galvanized Steel

G1/SECC
Features: Strong Rust Resistance
Applications: Lightweight Equipment, Electronic Heat Dissipation Parts

Titanium Alloy

TC4
Features: High Strength-to-Weight Ratio, Corrosion-Resistant
Applications: Aerospace Components, Medical Devices

Aluminum-Magnesium Alloy

5052/5083
Features: Sea Water Corrosion-Resistant
Applications: Ships, Transport Equipment
Surface Treatment
Surface Treatment

Anodizing
Electro
Powder Coating
Nickel Plating
Sandblasting
Teflon Coating

Anodizing

Process Introduction

Applicable to aluminum alloys, anodizing forms a hard oxide film on the aluminum surface through an electrochemical process, improving wear resistance, corrosion resistance, and electrical insulation.

It not only enhances material durability but also allows for coloring of the aluminum surface, widely used in aerospace, automotive, and construction industries.

  • Applicable Materials

    Aluminum Alloy
  • Effect Features

    Colorable, Surface Hardening, Good Insulation

Electro

Process Introduction

Applicable to metals like steel, aluminum, and zinc alloys. Electrophoretic coating uses an electric field to uniformly attach charged paint particles on the metal surface, forming a corrosion-resistant protective layer.

This process is especially suitable for complex-shaped parts, providing excellent rust protection. It is widely used for automotive bodies, household appliance shells, and other metal surface protections.

  • Applicable Materials

    Steel/Aluminum/Zinc Alloy
  • Effect Features

    Excellent Rust Resistance, Suitable for Complex Shapes

Powder Coating

Process Introduction

Applicable to metals like carbon steel, stainless steel, and aluminum. Powder coating forms a uniform and thick layer by electrostatic spraying and is cured at high temperatures, providing high impact resistance and durability.

This process offers multiple color options, is solvent-free, and has strong environmental friendliness. It is commonly used for metal furniture, appliances, and metal decorations.

  • Applicable Materials

    Carbon Steel/Stainless Steel/Aluminum
  • Effect Features

    Multiple Colors Available, Impact Resistant

Nickel Plating

Process Introduction

Applicable to metals like steel, stainless steel, aluminum, and copper. Electroless nickel plating uses a chemical reaction to uniformly deposit a nickel layer, providing high corrosion resistance, wear resistance, and oxidation resistance.

This process is suitable for complex-shaped parts and is widely used in automotive, electronics, and chemical equipment, significantly improving the lifespan and performance of components.

  • Applicable Materials

    Steel/Stainless Steel/Aluminum/Copper
  • Effect Features

    Uniform Coating, Strong Corrosion Resistance

Sandblasting

Process Introduction

Sandblasting uses high-speed abrasive (e.g., sand) to impact the metal surface, removing rust, dirt, and oxides, while creating a rough matte effect that enhances the adhesion of coatings.

It not only improves material durability but also allows for coloring, widely used in aerospace, automotive, and construction industries.

  • Applicable Materials

    Various Metals
  • Effect Features

    Matte Effect, Enhanced Adhesion

Teflon Coating

Process Introduction

Teflon coating is mainly used for various metals, providing low friction, high temperature resistance, and non-stick properties.

Due to its excellent chemical resistance and thermal performance, this coating is commonly used in high-temperature equipment, cooking utensils, mechanical parts, and chemical equipment, effectively extending product lifespan and improving performance.

  • Applicable Materials

    Various Metals
  • Effect Features

    Non-stick, High Temperature Resistance, Low Friction
Special Process Standards
Special Process Standards
Machining Accuracy Standards
Cutting Accuracy Bending Angle Tolerance Perpendicularity Deviation Plate Flatness
±0.2mm (Standard) / ±0.1mm (High Precision) ±1° ≤0.5mm/100mm Deformation ≤1.5mm/m
Quality Inspection

Dimension Inspection

Use specialized measuring tools to inspect the first piece and random samples

Welding Quality No pores, cracks, or edge defects
Surface Treatment Check color consistency, no scratches or missed coatings
Salt Spray Test Perform according to ASTM B117 standard (48h/96h/240h)
Appearance Requirements Surface flat, no scratches, sharp corners or safety hazards
Design Specifications
Drawings should conform to GB/T 14689 or ISO standards Hole distance from edge should be ≥ plate thickness × 2
External corners recommended to be R0.5mm to avoid stress concentration Riveting spacing ≥ plate thickness × 3
One-stop Service Advantage
One-stop Service Advantage

Full-process service from design review to product delivery

Flexible combination of various materials and processes

Strict quality control system

Professional surface treatment solutions

Support for personalized label customization
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