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Electrical contacting

The path to electrically conductive connections

New technologies require intelligent solutions for electrical contact connections that combine precision and function. iFast® elements stand for reliable electrical contacting combined with high mechanical stability – compact, efficient, and process-reliable. Whether spring-loaded, insulating, or conductive, they offer maximum design freedom for demanding applications. With customized iFast® solutions, we reduce installation space, optimize assembly processes, and sustainably increase the performance of your assemblies.

Electrical contact screw connection
Smart connections for maximum safety and efficiency

The market’s demands

  • Low contact resistance & secure connection stability
  • Easy-to-install solutions for hard-to-reach installation spaces, without drop risk
  • Resistance to creep, relaxation, aging, and environmental influences
  • Safe and standard-compliant design to prevent damage from occurring in the first place 
  • Customized connecting elements for resistance-optimized applications (service)
  • The right connection for material and coating 
  • Meeting the highest cleanliness requirements
  • EKVS consulting and training program

     

ARNOLD provides the solution

Electrical contacting

Technical advantages of electrical contact bolted joints ECBJ

  • iFast® connecting elements ensure defined contact pressure and permanently stable electrical conductivity – even in the event of vibration and temperature fluctuations.
  • Optimized contact surfaces enable reliable power transmission with minimal power loss.
  • Mechanical fastening and electrical contacting are performed in a single step – reproducible and torque-controlled, for high process reliability during assembly.
  • The combination of several functions in one element reduces the need for additional components such as separate contact or ground elements.
  • Designed for high current loads, thermal loads, and mechanical stress in automotive environments, it offers reliability under demanding conditions.

Commercial advantages of electrical contact bolted joints ECBJ

  • Cost savings: System solutions with integrated functions, reduced development costs
  • Weight savings: Reduction in installation space thanks to smaller conductor cross-sections and the use of multiple materials 
  • Efficiency: Improved assembly properties and maximum long-term stability
  • Flexibility: Individual adaptation of the connection to installation and application scenarios
  • Time savings: Reduction in errors and fewer process steps, faster assembly

Systemic approach at iFast®

iFast®
Sealing
(Pioseal®)
Technical cleanliness
(Cleancon®)
Electrical
conductivity
ARNOLD UMFORMTECHNIK GmbH

Areas of application

Specific areas of application

HV contacts 

  • Low-Resistance-Fastener
  • Press-in elements 
  • Touch protection

EMC solutions suitable for series production

  • Targeted deformation or breaking through of coatings,
  • Low-resistance ground contact,
  • Resistant to: vibration, corrosion, and thermal cycles
     

Electrical insulation

  • Touch protection
  • Compliance with air gaps and creepage distances
  • Transmission of high torques via plastic drive

Circuit boards, carriers, and housings 

  • Reduced assembly times,
  • Avoidance of additional process steps,
  • Reliable sealing concepts

Electrical contact screw connection
Loss of preload and increase in contact resistance

Electrical contact screw connection elements 

  • Application-optimized connecting elements
  • Hybrid mono and hybrid components
  • Insulated coated or overmolded components

Cleancon®

  • Chemical and mechanical cleaning for the highest cleanliness requirements in accordance with VDA 19.1
  • Demagnetization and position fixing

     

Experimental and numerical design

  • Simulative mapping and optimization
  • Analogy experiments on a laboratory scale
     

Fastening Testing Center

  • Analysis of assembly and release behavior
  • Load and aging tests
  • Accompanied by 4-wire resistance measurement
     

Consulting and training

  • Compliance with standards and guidelines when selecting connections
  • Preparation for VDI 2231

     

Electrical contact screw connection
in the application

Clamping part

Influences:

  • Alloy composition
  • Surface finish
  • Coating
  • Material thickness
  • Strength

Connecting element 

Prevention of heating and short circuits:

  • Conductive functional surface systems 
  • Adjustment of preload force and pressure distribution 
  • Adapted underhead geometry 
  • Application-specific material solutions

Assembly

Consideration of:

  • Preload force
  • Surface pressure
  • Temperature
  • Rotational speed
  • Cleanliness

Electrical contact screw connection
These are our solutions – diverse, but secure!

Connection design

  • Analytical consideration of the connection
  • Validation through analogy tests when considering connection partners and operating conditions
     

Connecting elements and system solutions

  • Connections for every material
  • Screw-in and press-fit elements
  • Complex components

Assembly and testing

  • Mounting systems (special solutions)
  • Selection of suitable surface systems and mounting parameters
  • Quality assurance over the entire service life

Ask for a personal consultation from our experts.