Alfred Kron GmbH from Solingen has stood for decades as a B2B manufacturer for the highest precision and reliability in the production of stamped and bent parts from steel strip and spring steel strip – from prototypes to large-scale production. As an experienced family business, Kron combines traditional mechanical engineering know-how with state-of-the-art manufacturing technology – ideal for customers from automotive, mechanical engineering, the electrical industry or medical technology. Particularly noteworthy is the use of BIHLER stamping-bending machines, which produce even the most complex geometries efficiently, reproducibly and with minimal material loss.
Stamped and bent parts made to technical drawing are produced from steel strip or spring steel strip in typical material thicknesses of 0.3 to 1.5 mm, through combined stamping and bending processes. Contours, perforations, offsets or integrated springs and retaining elements are formed in one or several operations. This enables high dimensional accuracy, functional integration and short cycle times – decisive for economical series production.
Another advantage: Kron has a strong in-house toolmaking shop and 3D design department. From the first customer drawing as a PDF or CAD file to series production, individual solutions are implemented "from a single source", minimizing interfaces, shortening setup times and maximizing the precision to drawing in the end product. High-quality materials such as stainless steel, spring steel or copper alloys guarantee longevity and optimal functionality.
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Stamped and bent part for door mounting
Stamped and bent bracket for LED lighting clamp
Production, Materials, Applications and Advantages of Stamped and Bent Parts
Stamped and bent parts as drawing parts are central components in all industrial sectors, such as automotive, mechanical engineering, household goods and the electrical industry. They connect mechanical elements, enable functional integration and contribute to the stability of assemblies. Alfred Kron GmbH manufactures these high-precision components with the latest BIHLER stamping-bending machines and an experienced team, in order to produce each stamped and bent part to technical drawing as a PDF or CAD data (DXF, STEP) and in accordance with prescribed ISO standards, dimensions, specifications and tolerances – efficiently and in the desired batch sizes.
Why Stamped and Bent Parts Are Indispensable Components
Stamped and bent parts are created through combined stamping and bending processes from metal strips and steel strip. They combine several functions in a single component:
- Compliance with tight tolerances with minimal material loss
- Integration of springs, hooks, retaining or contact points
- Maximum stroke rates for economical series production
- Materials: stainless steel (1.4301/1.4310), spring steel, copper alloys, aluminum
- Surface finishing: all common coatings such as galvanizing and nickel-plating, as well as hardening and vibratory grinding (in-house)
Practical Example
For electrical building technology and petrochemical actuator gears, Kron produced precise stamped and bent parts with integrated assembly function, which are preloaded and mounted directly on the machine. A process that would otherwise have required several downstream work steps. For this demanding product realization, we built a high-end progressive compound tool. For us as a supplier, a true highlight in stamping automation and sheet metal forming.
Manufacturing Process on BIHLER Machines
- Material feed: automatic strip or wire feed for exact positioning
- Stamping: precise cutting, perforating and forming of complex contours
- Bending: multi-stage radial and linear bending processes for the highest dimensional accuracy
- Assembly and additional processes: integration of springs, electrical contacts, threads or laser welds directly on the machine
- Quality assurance: digital measuring systems (e.g. Keyence) and CAQ system (Babtec) check angles, dimensional accuracy and functionality
Machine portfolio: RM40 K, GRM50/80/100, MCS-1, MC42, MC82 – for all series sizes and complex geometries.
Advantages of Production on BIHLER Machines
- Maximum precision to drawing specifications for complex geometries with camera integration for 100% inspection
- Short setup times and flexible batch sizes
- High production speed with minimal scrap for ready-to-install components straight off the tool
- Integration of stamping, bending, thread forming, laser welding, as well as assembly and preloading in a single process
- Use of high-quality materials from certified suppliers for maximum longevity and trouble-free processability
In Which Industries Are Stamped and Bent Parts Made to Drawing Used?
Automotive: spring mechanisms, retaining and fastening elements, conductor contacts – IATF 16949-certified processes for the highest quality
Mechanical & plant engineering: assembly and connecting parts, guide elements, custom solutions
Electrical and electronics industry: circuit board contacts, relay springs, switch contacts
Household goods industry: spring mechanisms, retaining brackets and fastening elements in appliances
Stamped and bent part with laser welding
Stamped and bent part as contact spring
Why Alfred Kron Is Your Partner for Stamped and Bent Parts
Stamping and bending is our expertise. We always keep the technical and economic goals of our customers in mind. Only when our customers achieve real advantages through working with us have we done our job right:
- Decades of manufacturing experience in stamped and bent parts with experienced machine setters
- In-house department for toolmaking and design
- Use of state-of-the-art BIHLER machines, such as the Bihler RM40 K
- Certified quality to IATF 16949 & ISO 14001, short delivery times and transparent communication
Stamped and bent drawer front bracket
Stamped and bent magnetic ring holder
FAQ
What are stamped and bent parts?
These are components produced through a precise stamping process from strip material, which obtain their final form through subsequent bending. They are central components in, among others, the automotive industry, electrical engineering and mechanical engineering.
Which materials can be used?
We process a wide variety of metals, including steel, stainless steel (e.g. 1.4301/1.4310), aluminum as well as copper and copper alloys (non-ferrous metals). We tailor the exact selection precisely to the specific requirements of your application.
What is the advantage over conventional bent parts?
The greatest benefit lies in the enormous precision and cost efficiency at high volumes. The combined process on automatic machines also optimizes material usage and minimizes scrap.
For which applications are the components suitable?
They are used in numerous industries. Typical examples are contacts, springs, retaining brackets and complex connecting elements for electronics, vehicle construction or medical technology.
Which manufacturing techniques are used?
Production takes place in a combined stamping-bending process, often on state-of-the-art BIHLER machines. This enables the forming of complex geometries and extremely tight tolerances exactly to your drawing specifications.
How is production carried out for the automotive industry?
In this heavily regulated sector (e.g. to IATF 16949), the focus is on strict compliance with drawing specifications, maximum reliability, statistical process control (SPC) and 100% inspections through camera integration and monitoring of critical dimensions. Here, mainly electrical conductor contacts, spring mechanisms and structural components are produced. Alfred Kron GmbH is a preferred automotive supplier of stamped and bent parts.
Are special surface treatments possible?
Yes, we offer various finishes. These include common coatings such as galvanizing and nickel-plating as well as in-house processes such as hardening and vibratory grinding, in order to maximize corrosion resistance and durability.
How high is the production capacity?
This varies depending on the project and the complexity of the geometry. Thanks to our efficient machine fleet, however, we also realize very high volumes within a very short time at consistently high quality.
Do you offer customer-specific solutions?
Yes, our focus is on customer-specific solutions. Through our own toolmaking and 3D design at Kron, we implement technical drawings precisely by building durable and efficient tools to achieve the technical and economic goals of our customers.
How long does production take?
The lead time depends on the quantity and the tooling effort. Thanks to optimized setup processes "from a single source", production can usually be completed within a few days to weeks.
Conclusion
Stamped and bent parts are indispensable components and are used in all industrial sectors. At Alfred Kron GmbH, all important processes are in-house: design & toolmaking, a large modern machine fleet and efficient processes in quality and delivery logistics for the highest industrial requirements.
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Please send us the relevant technical drawing, a sketch and/or CAD data (STEP, DWG, DXF, IGES) for your request, along with the desired quantities and batch sizes.
If available, technical information regarding installation and use, or specific quality requirements, could also be important for us.
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