Cetim Engineering

Your expectations

Mastering bolted assemblies is a key factor in ensuring the performance, repeatability, and robustness of your manufacturing process.

During the development phase of a new product or a new production line, you need to:

Define the requirements and specifications for the mechanization or automation of a bolted assembly process,
Draft technical purchasing specifications for fasteners (technical specifications, fastener drawings, reference standards),
Select the appropriate tightening equipment, organize one or more workstations, and structure material and component flows,
Secure critical parameters (control of fastener friction coefficients and part surface adhesion coefficients, tightening data management, traceability management),
Validate process performance.

During the production phase, you need to:

Perform a production line audit following a quality issue (incorrect tightening torque, unscrewing during use, unexpected fastener failure),
Validate the applied tightening torque through in‑process production tests,
Optimize and secure the tightening sequence,
Implement a tightening control strategy during assembly or post‑process.

Our bolted assembly experts support you throughout the entire lifecycle of your bolted assembly process, from design to production:

On‑site intervention to conduct a Product/Process FMEA to identify key parameters influencing bolted joint reliability,
On‑site audits with a multidisciplinary team (production, design, industrial engineering, quality, etc.) to review the entire bolted assembly value chain and resolve quality issues,
Proposal of multiple production and material flow scenarios (manual or automated tightening tools, fastener and part feeding systems, inspection solutions),
Support in drafting technical specifications and requirements documents,
Development or securing of tightening sequences through instrumented testing (torque and preload measurement) conducted either on your factories or in our laboratories,
Analysis of torque‑angle curves to optimize tool parameters and define an effective control strategy,
Execution of R&R (Repeatability and Reproducibility) studies under real production conditions.

A dedicated team of bolted assembly specialists with strong expertise in methods and industrialization,
Advanced measurement equipment incorporating the latest technologies,
A wide range of industrial resources for comparative testing and feasibility studies,
Availability of equipment to monitor or validate critical parameters during production ramp‑up.