METHOD OF DETERMINATION OF STRENGTH OF ADHESION OF CLADDING WITH PARENT MATERIAL Russian patent published in 1997 - IPC

FIELD: welding. SUBSTANCE: prior to cladding, a through hole is made in parent material, insertion piece with diameter d_o is inserted in it flush with the surface to be cladded, cladding with thickness δ is applied onto it and force is applied to the insertion piece up to the destruction-cut of the cladding, the depth of its detachment is determined as distance l between the hole edge and the line of adhesion of the cladding with the parent material, diameter d₁ of this line is determined from relation d₁=d_o+2l, actual area of detachment F from the cladding is calculated. Having determined cut area F_cut=πd_oδ, we find the detachment area corresponding to it from relation F*ult

=0,5F_cut. Knowing the cladding strength and relation F*ult/F_cut, we find the strength of adhesion of the cladding with the parent material. EFFECT: facilitated procedure. 2 dwg