Deep stamping represents a major technical challenge in the metallurgical industry, particularly when it comes to forming aluminum bowls requiring an impeccable finish. At KUCHLY, we have met this challenge by developing specialized expertise in the production of aluminum bowls of various dimensions. Our technical mastery, acquired since 1956, now allows us to offer deep stamping solutions that meet the market’s most stringent requirements.
Mastering deep aluminum stamping technique
In our workshops, shaping a flat aluminum sheet into a deep bowl requires millimeter-level precision. Our technical team relies on over 60 years of experience to control every critical parameter:
- Thickness management: maintaining perfect 3mm consistency across the entire part
- Deformation control: preventing the appearance of waves when transitioning from flat to domed shape
- Surface quality: achieving an impeccable finish both inside and outside the bowl
- Stress control: working within the elastic limits of aluminum without risk of fracture
This technical complexity requires in-depth expertise and specialized equipment to guarantee an optimal result.
KUCHLY stamping process: power and precision
Over the years, we have developed and perfected a unique deep stamping process. This expertise, forged by experience and constant innovation, relies on three fundamental technical elements:
1) A high-performance blank holder press system:
- Impressive clamping force of 48 tons
- Constant sheet metal retention during the operation
- Precise control of applied pressure
2) Optimized lubrication management:
- Use of high-viscosity oil
- Controlled friction coefficient
- Controlled application over the entire surface
This technical combination allows for perfectly controlled deformation of aluminum. The metal “tightens” uniformly during stamping while maintaining its original 3mm thickness, without variation or defect. This is what we call “pure drawing” in our profession.
Performance and quality of KUCHLY stamping
The deep stamping that we perform in our Réding factory stands out significantly from traditional spinning. Our method guarantees unparalleled technical precision for each aluminum bowl produced.
We rigorously control several parameters:
- Thickness remains constant at 3mm across the entire bowl
- The walls are smooth, without waves or tears
- The perimeter is perfectly circular, with a tolerance of ±0.1mm
- Both the inner and outer surfaces are uniform and flawless
From an industrial perspective, our stamping process offers several advantages:
- High-volume series production
- Identical quality for each part
- Controlled manufacturing lead times
- Optimized quality/price ratio
This organization allows us to effectively meet the needs of our industrial clients, while maintaining our “Made in France” quality standard.
Technical specifications of our aluminum bowls
We currently offer two standard formats of stamped aluminum bowls:
Standard format:
- Diameter: 100mm
- Depth: 50mm
- Thickness: 3mm
- Tolerance: ±0.1mm
Large format:
- Diameter: 200mm
- Depth: 100mm
- Thickness: 3mm
- Tolerance: ±0.1mm
These technical characteristics meet the requirements of many industrial sectors, particularly with stainless steel:
- The food industry particularly appreciates the finish quality for its processing and storage bowls.
- The medical sector, with its sterility requirements, finds reliable solutions in our products for its containers and instruments.
- Industrial equipment regularly incorporates our bowls for specific technical applications.
Deep Stamping of Aluminum Bowls: Video
Our 48-ton press in full production: discover in video the transformation of a flat aluminum sheet into a perfectly finished bowl. This 45-second sequence showcases our team’s expertise and the power of our equipment at work in our Réding workshop.
Realize your stamping project
Do you have a deep aluminum stamping project? Our design office and technicians will assist you at every stage:
- Analysis of your specifications
- Technical feasibility study
- Manufacturing process optimization
- Prototype production
- Series production launch
