Issue 47

K. Hachellaf et alii, Frattura ed Integrità Strutturale, 47 (2019) 459-467; DOI: 10.3221/IGF-ESIS.47.36

Figure 6: Welded test specimen [12].

Fig. 7 shows a typical aspect of the weld on welded plates with a rotation speed of 875 rpm and advance speed of 24 and 40 mm/min shown in Tab. 3.

Figure 7 : Law behavior of welded specimens

Tool type :

Efficiency rate the stress of the welded joint (%)

Max stress of tensile test Rm max (MPa)

Rotation speed (rpm)

Elasticity module E (MPa)

Conical profile (T1) Test N° 1

Standard deviation (  )

Advance speed a (mm/min)

Average (x)

24 40

22.60 23.11

1320 2102

5.56 7.94

875

2

cylindrical profile (T2) 3

23.257

0.927

14.94

24 40

24.61 22.71

1500 1433

875

6.07

4

No welded sample test

21.41

920

/

/

/

Table 4 : Tensile strength values and their effectiveness on the welded bead.

464