similar to boss 119 in fig9 and 12 or into nuts while this approach should be satisfactory it would not be as economical as the preferred approach now to be described in conjunction with fig9 11 initially a mounting arm such as the arm 41 is positioned adjacent to the outer periphery of the shell 102 thereafter and while the mounting arm is held in a desired position relative to the shell a reinforcing strap or plate 96 having a pair of projections 97 98 thereon is positioned over the motor mounting pad locating means shown as apertures 101 in fig9 11 are defined by the motor mounting tab 65 and the projections 97 98 co operate with such locating means to permanently hold the mounting arm 41 in a fixed location on the shell 102 when the shell is about 0 050 inch thick and tab 65 is about 0 035 of an inch thick the plate 98 preferably is about 0 090 inch thick this thickness of strap 96 prevents it from subsequently bending or buckling and also provides a mass that co operates with the mass of shell 102 to provide heat sink means or heat transfer means that it is believed prevent adverse heat build up and microstructure changes in the tab 65 the preferred sequential process steps include positioning a mounting arm e g arm 41 adjacent to a motor shell positioning a reinforcing plate adjacent to the mounting arm and positioning projection means so that the projection means interfit with locating means defined by the tab 65 of the mounting arm thereafter a welding electrode is relatively positioned adjacent to one side of the.