VDI/VDE 2862 - Efficient and safe screwdriving processes: A guide to implementation

Are you responsible for the quality, efficiency and safety of your company's fastening processes? VDI/VDE 2862 provides a solid basis for mastering these challenges safely. We describe why the guideline is crucial for your work and how you can use it to optimize your screwdriving processes, increase product quality and reduce production costs.

VDI/VDE 2862 regulates the industrial use of screwdriving systems and tools in order to minimize sources of error and ensure consistent quality in production. It specifically concerns the automotive industry as well as mechanical and plant engineering, but is also recommended for screw connections outside these areas of application, where precise and reliable screw connections are essential.

The guideline consists of two sheets:

• Sheet 1 describes minimum requirements for the use of screwdriving systems and tools for applications in the automotive industry.

• Sheet 2 provides a basis for the use of screwdriving systems and tools in plant and mechanical engineering.

The guideline provides the user with framework conditions for the selection of screwdriving tools and thus ensures safe screw fastening in production. Furthermore, VDI/VDE 2862 provides a clear classification of screwdriving cases into categories.

Precise work is essential in automotive production as well as in mechanical and plant engineering. VDI/VDE 2862 requires that screwdriving systems are equipped with continuous monitoring in order to immediately detect and correct N.I.O. screw connections. To detect faulty connections, at least one control variable and one control variable must be measured - directly or indirectly, depending on the category of the screw joint - and made available for further processing. The selection of the appropriate tightening method has a direct impact on process reliability, repeatability, and the subsequent evaluation of the tightening result.

Screwdriving cases and risk classes

VDI/VDE 2862 classifies screwdriving processes according to risk classes, which is decisive for the selection of suitable screwdriving systems.

• Category A - High risk assessment: Danger to life and limb
  Bolted connections whose failure is likely to lead to the destruction of the entire system (vehicle, installation) and whose failure poses a risk to life and limb.

• Category B - Medium risk assessment: Failure
  The failure causes a malfunction or even a standstill of the system. In the case of vehicles, for example, it is then no longer possible to reach the nearest workshop independently.

• Category C - Low risk assessment: Non-critical
  Non-critical bolted joints that do not correspond to either category A or B.

Failure of a bolted joint is defined in the directive as loosening, breakage of the bolt and loss of the bolt or nut.

 

What Impact Does the Risk Category Have on the Screwdriving Process?

Classifying a screwdriving application as Category A, B, or C affects not only the risk assessment, but also the requirements for the entire screwdriving process. As the criticality of the joint increases, the requirements for process monitoring, documentation, and traceability generally increase as well.

For less critical screw connections, simple screwdriving tools or systems with limited monitoring may be sufficient. For safety-critical or function-critical connections, however, screwdriving systems are often required that capture, evaluate, and provide relevant process data for further processing. This can include measured values such as torque, angle of rotation, or other process-relevant parameters.

The specific design always depends on the individual screwdriving application, the use case, and the requirements for quality assurance and traceability.

 

The path to a VDI/VDE 2862-compliant bolting process

Implementing VDI/VDE 2862 requires a structured review of existing screwdriving processes. At the same time, it provides an opportunity to systematically improve process reliability, documentation, and quality. To establish a standard-compliant bolting process, you should implement the following steps:

1. Analysis of the current status: check whether your current bolting processes already meet the requirements of VDI/VDE 2862. Where is there potential for improvement?

2. Selection of suitable screwdriving systems: Select screwdriving systems that match the risk category, the required process monitoring, and the necessary documentation for your application. For more complex screwdriving processes, an integrated system approach can help align screwdriving technology, control systems, data acquisition, and traceability.

3. Training your employees: Your employees must understand the requirements and how to use the new systems. Schedule regular training sessions to ensure a smooth implementation.

4. Process monitoring: Implement a system for monitoring your screwdriving processes in order to detect deviations early and initiate suitable response measures. Systems such as DEPRAG Cockpit can help capture and evaluate relevant process data.

 

Why VDI/VDE 2862 is important for you

Compliance with VDI/VDE 2862 offers numerous advantages:

• Increase process safety: Minimize errors and improve reliability.

• Increase quality: Ensure consistently high product quality.

• Reduce costs: Avoidance of rework and rapid amortization.

• Ensure compliance: Adherence to current standards and regulations.

In practice, difficulties often arise not from the guideline itself, but from screwdriving processes that have not been fully assessed. Typical challenges include missing or inconsistent classification of screwdriving applications, insufficiently defined response measures for process deviations, or incomplete documentation of relevant screwdriving data.

Existing screwdriving systems must also be reviewed: Not every tool or controller meets the requirements for monitoring, data acquisition, and traceability. In addition, employees should be trained regularly so that inspection criteria, error messages, and response procedures are clearly understood and reliably applied in day-to-day production.

A structured review of the entire screwdriving process helps identify these issues early and define suitable measures.

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