اثير بعض المتغيرات علي اللحام باستخدام اشعة الليزر

The research is concerning the study of the effect of the variable factors on the bearable force welding to weld samples by lasering with application, though measuring the sharing force, by applying the universal testing machine. It found out that it is nearly equal or more than the familiar types of ordinary welding method of load force. For example the welding of steel thickness (0>85) mm. On tow spot welding, each point consist of (two pulses) diameter (0>8) mm. The samples bears (412) Newton and galvanized iron thickness (0>4) mm the sample bears (215) Newton. The study carried out to know the effect following variable factors: 1. The value of energy 2. Metal thickness. 3. Metal type. 4. The numbers of spot welding on the sample By observing the graph, we notice the increasing the load value which the welded samples beard by increasing the energy of laser rays to ascertain extent, then the load starts to decrease by increasing the energy to all kinds of metals which are tested. The relation of numbers of spots welding with the value of load is in equal level to certain extent. Then the load starts to decrease with increasing number of spot welding for all types of metals except the galvanized iron. While the relation stayed with no the load.