Tecnalia. Inspiring Business

Tecnalia. Inspiring Business

Pre-load application and control in bolted joints


Venue: Online Course
Date: 2020.11.25
Hours: 9 am to 4:30 pm
Organiser: TECNALIA
Price: €150 + VAT
Arantxa Tejada

Bolted joints increase the cyclic load level that bolts are capable of withstanding. Correct assembly achieves load distribution between bolts and joint elements so that together they can significantly increase load capacity.

  • The importance of bolt pre-loading for the safety and reliability of bolted joints will be showcased.
  • Different pre-load application techniques and inspection and control methods will be introduced.  
  • Technical limitations will be reviewed, allowing users to understand, solve or prevent problems in the field.
  • In addition, different types of bolted joints, the interactions between the joint elements, the assembly process, behaviour in service, failure modes, etc. will be addressed.


  • Everyone who wants to understand how a bolted joint works, how the tightening is applied and controlled correctly, and what the consequences of incorrect tightening can be.
  • Engineers, technicians, assembly processors, maintenance managers, etc.


  • 9:00 am Welcome and opening (10´): Isabel Aramburu
  • 9:10 am Basic concepts and materials (20´): Leire Mendia
  • 9:30 am Introduction to assembly (20´): Leire Mendia
  • 9:50 am Controlling pre-load torque (30´): Jaime Gascón
  • 10:20 am Torque and turning control (30´): Jaime Gascón

10:50 am Break (30´)

  • 11:20 am Other methods for controlling pre-load (15´): Leire Mendia
  • 11:35 am Theoretical behaviour of a joint under tensile loads (45´): Leire Mendia
  • 12:20 pm Behaviour of a joint subjected to cutting (10´): Leire Mendia
  • 12:30 pm Benchmarking and quality (15´): Leire Mendia
  • 12:45 pm Practical demonstration (15´): Leire Mendia

1:00 pm Lunch break (1 h)

  • 2:00 pm Introduction to failures in bolted joints (1 h): Jaime Gascón
  • 3:00 pm Case studies (1 h) Jaime Gascón

4:00 pm Closing address

The course will combine theory with practical examples. At the end of the training session, participants will receive printed documentation.


  • Once we have received your pre-registration application, we will send you a confirmation email with bank information in order to pay for the course.
  • Fees must be paid before the start of the course to complete registration.
  •  This course may be subsidised by the State Foundation for Employment Training.
  • If you have any questions, please contact Arantxa Tejada


Curso Online_Aplicación_Control _Precarga_Uniones_atornilladas

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