Case Study：Custom Blind Rivet for Washing Machine Housing
For a home appliance supply chain project in South Korea, the client provided rivet drawings based on the assembly requirements for Samsung washing machine housing components. Rivmate was asked to customize rivets suitable for the production line according to these specifications.
Customer Requirements and Project Expectations
The customer wants Rivmate to develop a 4.0 mm pop rivet for connecting the washing machine housing. The joint must achieve a minimum shear strength of 90 kgf and a tensile strength of 140 kgf. The riveting solution must meet the actual assembly requirements of the existing product drawings, assembly structure, and production stations.
The customer is not only concerned with the suitability of the individual rivet’s structure and mechanical properties but also places great importance on the compatibility between the rivet shank length and the mass-production assembly stations.
Client Detail Requirements
The client’s key requirements include:
Must meet the actual assembly requirements for the washing machine housing
Rivets are used to join the thin-sheet metal assemblies of the washing machine housing. Therefore, the dimensions of the rivets must match the housing’s mounting holes, overall thickness, and riveting locations.
The mandrel reveal must be 30 mm or longer
The customer’s existing assembly station has specific requirements regarding the length of the mandrel that can be gripped; the mandrel reveal of standard rivets does not meet the actual installation conditions. Therefore, the mandrel reveal must be increased to ≥30 mm.
Ensure the rivet dimensions are 4.0 × 9.5 mm
While increasing the mandrel length, the overall length of the rivet must be maintained. The rivet dimensions must match the connection points on the washing machine housing to avoid compromising the riveting performance.
Match existing mounting holes
The rivet must fit the specified mounting hole dimensions. This minimizes the need for the customer to redesign the existing punch-hole structure of the washing machine housing.
Must accommodate the actual combined sheet metal thickness
The rivet must span the actual joint thickness of the washing machine housing assembly to ensure stable riveting performance within the specified thickness range.
Must meet minimum mechanical performance requirements
The customer’s drawings specify minimum tensile and shear strengths for the rivets as follows: Typical Tensile Strength: 1373 N
Typical Shear Strength: 883 N. This ensures the rivet structure has sufficient load-bearing capacity.Materials and Surface Treatments Must Meet Project Requirements
The rivet body is made of aluminum with a natural finish. The rivet shank features a white zinc plating. This enhances overall visual consistency and corrosion resistance.
Customer Pain Points
- The exposed length of the shank on standard 4.0 mm pop rivets is insufficient
Standard-size rivet shanks do not meet the actual assembly requirements for washing machine housings. - The rivet shank needs to be lengthened without changing the riveting dimensions
Extending the exposed shank length to 30 mm or more will alter the 4.0 × 9.5 mm rivet body specifications and the original riveting structure. - Uncertainty regarding joint strength after changing the shank length
While extending the shank length, it is essential to ensure that the mechanical performance requirements of the joint are met - Custom rivets must be compatible with the washing machine housing
Avoid situations where the designed rivets require modifications to the washing machine housing structure
Rivmate Riveting Solutinos
Based on an analysis of the customer’s drawings, the design of a non-standard rivet shank length, and the confirmation of engineering parameters, Rivmate ultimately developed the ASMG-B40095S1 4.0 × 9.5 mm Custom Blind Rivet.
Compared to the rivet specified in the customer’s drawings, Rivmate’s custom ASMG-B40095S1 rivet, when installed using a rivet gun, not only ensures that the exposed shank length meets the operational requirements of the assembly station but also enhances the product’s mechanical properties, enabling stable actual assembly.
| Item | Recommended Solution |
|---|---|
| Rivet Type | Custom Aluminum / Steel Blind Rivet |
| Application Position | Washing Machine Housing Connection |
| Recommended Specification | ASMG-B40095S1 4.0 × 9.5 mm |
| Rivet Body Length | 9.50–10.50 mm |
| Grip Range | 1.50–6.00 mm |
| Recommended Hole Diameter | 4.10–4.20 mm |
| Body Material | Aluminum 5052 |
| Mandrel Material | Steel |
| Mandrel Reveal | ≥ 30.00 mm (Customized) |
| Body Finish | Polished |
| Mandrel Finish | Zinc Plated |
| Typical Tensile Strength | 1500 N |
| Typical Shear Strength | 950 N |
| Main Purpose | To meet the existing washing machine housing assembly conditions with a customized ≥30 mm mandrel reveal. |
Why Customize the ASMG-B40095S1 Blind Rivet
- The custom ASMG-B40095S1 pop rivet is better suited to the existing washing machine housing design, reducing the need to adjust panel structures and mounting holes.
- The rivet shank is sufficiently long to better accommodate the customer’s existing riveting tools and assembly stations.
- The ASMG-B40095S1 pop rivet exceeds the customer’s performance standards for tensile and shear strength, enhancing the product’s mechanical properties.
- After riveting, the ASMG-B40095S1 pop rivet ensures stable installation of the riveting gun, creating a reliable connection.
Rivmate’s Capabilities in Customizing Blind Rivets:
Rivmate manufactures blind rivets in accordance with IATF and ISO quality management systems, drawing on extensive experience and advanced technical expertise. If you’ve encountered situations where standard pop-out rivets cannot meet your project’s requirements—including:
- Core length too short
- Special grip range
- Non-standard rivet body length
- Special head shape
- Special hole diameter
- Special material combinations
- Special surface treatments
- Compatibility with automated assembly equipment
- Special tensile or shear strength requirements
Please send your product drawings, mounting hole dimensions, sheet metal thickness, material specifications, and photos of the actual application to Rivmate. Our technical team will assist you in analyzing the appropriate pop rivet specifications.
Hey There, I'm Allen!
I am the founder of Rivmate. For over two decades, we have specialized in the manufacture of blind rivets, providing our customers with reliable riveting solutions.Need riveting services? Feel free to contact us.