Coated Plug Connector Component for Burr-Free Deformation

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Solution Overview

Problem

Existing methods for producing metallic plug connector components with coatings face issues such as coating flow during deformation, leading to sharp edges, chips, and increased production costs due to secondary processing, which are undesirable in mass production.

Innovation Solution

A metallic plug connector component with a defined surface structure on the coating in processing portions, allowing for precise and cost-effective production by preventing coating flow during deformation, using tools with complementary surface structures to establish a form-fitting connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a coated metallic part is deformed in a processing portion adjacent to an edge, then the desired shape is imparted to the part, but the coating flows and projects beyond the edge forming sharp edges and chips

Engineering Contradiction:
Improvedesired shape of the partVSAvoidcoating projection and sharp edges
Core Design Contradiction:
ShapeVSManufacturing precision

Solution Approach 1:

A deformation allowance is introduced into the part before the deformation process. This allowance provides extra material in the processing portion that compensates for the coating flow during deformation, preventing the coating from projecting beyond the edge and forming sharp edges or chips.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The geometry of the part is modified by adding a deformation allowance, which changes the initial shape parameters. This allows the deformation process to proceed without causing coating projection, as the extra material absorbs the coating flow.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If secondary processing steps are performed to remove coating projections and chips, then manufacturing precision is improved, but production time and costs increase

Engineering Contradiction:
Improvequality of the deformed partVSAvoidproduction time and cost
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The deformation allowance is introduced in advance into the part design, preventing coating projection issues before they occur. This eliminates the need for secondary processing steps to remove chips and projections, thereby reducing production time and costs while maintaining high manufacturing precision.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If the coating is made thicker to prevent flow during deformation, then coating projection is reduced, but the part becomes more prone to cracking and the coating quality deteriorates

Engineering Contradiction:
Improveprevention of coating projectionVSAvoidcrack resistance and coating quality
Core Design Contradiction:
Manufacturing precisionVSStrength

Solution Approach 1:

Instead of increasing coating thickness, a deformation allowance is introduced into the part geometry before deformation. This allows the coating to flow into the allowance during deformation without projecting beyond the edge, preventing coating projection issues while maintaining optimal coating thickness for strength and quality.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The solution changes the geometric parameters of the part by adding a deformation allowance, rather than changing the coating thickness parameter. This maintains the optimal coating thickness for strength and quality while preventing coating projection through geometric compensation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12438324B2Metallic plug connector component, and method and device for producing a metallic plug connector component
Publication Date: 2025.10.07 ROSENBERGER HOCHFREQUENZTECHNIK GMBH & CO KG
  • US12438324B2 patent drawing
  • US12438324B2 patent drawing
  • US12438324B2 patent drawing

AI summary

The invention relates to a metallic plug connector component (1), in particular an electrical contact element, or a support sleeve, of an electrical plug connector, having a main body (3) which has been coated with a coating (2) and which has been mechanically deformed in a processing portion (4). It is provided that a surface (6, 7) of the coating (2) in the processing portion (4) has a defined surface structure (8) at least in certain portions.