Content of Basic Seminar

• Basic units - which are necessary for threaded fasteners
• Definition of torque, clamp-force and friction
• How we can bring the torque into the joint 
• Tools - force application into the bolt head
• Torque measuring - sensors
• Main target of a threaded fastener
• Clamp-force as most important value
• Presentation of torque- and clamp-force tightening curves
• Friction as factor between torque and clamp-force
• Definition of friction coefficient
• Determination of main values of a tightening - ISO 16047
• Range of friction coefficients in the industry
•  Performing of practical tightenings for a better understanding of torque/friction/clamp-force relation
• What is a torque assembly - essential parameters
• Joint loading until break - where are the limits
• What means yield and how can it be reached precisely
• What rol does the angle of rotation play in a screw connection
• Why a angle controlled fastening deliver better results as torque control 
• Presenting 4 different tightening methods - torque - angle - yield - elongation; advantage, disadvantage, limits
• Most important standards of threaded fasteners : VDI 2230,VDI/VDE 2862, DIN 25201, DIN/ISO 6789, VDA 235-203, different standards regarding tightening elements
• Test and calibration of tools
• Testing threaded joints
• Securing of threaded fasteners
• When possible - questions of participants are answered directly
• Discussion