Welded Structure Battery Cases

Our high-precision, well-mating products can be used for a wide range of applications requiring high reliability, from general to aerospace. By replacing conventional deep-drawing products with welded cases, we can achieve total cost reduction and quick delivery while maintaining the highest quality standards.

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Low Cost, Short Delivery Time

• Price: Since our process doesn't require the manufacture of expensive drawing dies, costs are significantly lower. Our service is ideal for customers considering high-mix, low-volume production of products for which tooling costs cannot be recovered or for those who want to start prototyping even though there is still a possibility of specification changes.

• Delivery Times: Planning, design, and fabrication of drawing dies inevitably require a certain period, but since we do not fabricate deep drawing dies, we can finish them quickly. Our entire process is set up to minimize lead times and ensure rapid delivery.

Proven Performance, Advanced Technology

• Quality: We have extensive experience in general consumer products and mission-critical applications in the aerospace industry, defense, and research institutes. We meet all customer requirements, including high dimensional accuracy, appearance requirements against scratches, and high airtightness to withstand vacuum.

• Technology: Unlike deep drawing press work, there is no limit to the depth of the case. Also, the corner radius can be reduced. It is also possible to accommodate cases with large aperture length-to-length ratios (aspect ratio).

Case Study

Titanium Alloy (Ti-6AL-4V) Battery Case

While Ti-6Al-4V alloy has excellent mechanical strength, it is challenging to draw deep and extremely difficult to weld. Our technology enables sound welding, making it possible to produce the battery case shown in the following photo.

Our Five Strengths

Point 01

High-mix, Low-volume Production
Point 02

Responding to requests for Short Delivery Times
Point 03

High-difficulty& Special Processing
Point 04

Design, Prototyping & Mass Production
Point 05

JIS Q 9100 Compliant Quality Control

Why Ohkita

Quality Assurance

JIS Q 9100 Certified

Our Shimamoto Factory was certified in September 2015 for JIS Q 9100. This means it meets the requirements for quality management systems in manufacturing specialized battery parts for civil aircraft and space applications.

Production & Quality Control Systems

We take a centralized approach to production and quality control. From receiving an order to delivering the product, every stage is managed through an integrated database. Our manufacturing records ensure that our products are all traceable.

Appearance Inspections
Dimensional Inspections
Helium Leak Tests
Penetration Tests
Tensile Tests
Hardness Tests

View Quality Assurance

We will help you choose the best product for your needs.

Available in both English and Japanese.

Our professional staff will provide you with detailed customer service.

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