Housing assembly

An axle assembly comprising:

• a carrier housing having a wall member, a pair of bearing bulkheads, and a pair of tube mounts, the wall member defining a differential cavity about the bearing bulkheads, the bearing bulkheads being fixedly coupled to the wall member and adapted to support a differential assembly for rotation within the differential cavity, each of the tube mounts being a hollow structure with a proximal end, which is fixedly coupled to an associated lateral side of the carrier housing, and a distal end that is opposite the proximal end, wherein a securing aperture is formed through each of the tube mounts;
• a pair of axle tubes, each of the axle tubes being received into an associated one of the tube mounts;
• and
• a pair of fillet welds, each of the fillet welds coupling a corresponding one of the axle tubes to a corresponding one of the tube mounts, each of the fillet welds being formed about a perimeter of an associated one of the securing apertures such that each of the fillet welds occurs substantially completely over an inside perimeter of the associated one of the securing apertures.

An axle assembly comprising:

• a carrier housing having a wall member, a pair of bearing bulkheads, and a pair of tube mounts, the wall member defining a differential cavity about the bearing bulkheads, the bearing bulkheads being fixedly coupled to the wall member and adapted to support a differential assembly for rotation within the differential cavity, each of the tube mounts being a hollow structure with a proximal end, which is fixedly coupled to an associated lateral side of the carrier housing, and a distal end that is opposite the proximal end, the tube mounts being in fluid communication with the differential cavity, each of the distal ends of the tube mounts having a plurality of circumferentially spaced apart notches;
• a pair of axle tubes, each of the axle tubes being formed of steel and being received into an associated one of the tube mounts;
• and
• a pair of first fillet welds coupling the axle tubes to the tube mounts, each of the first fillet welds being formed about a perimeter an associated one of the distal ends such that each of the first welds occurs substantially completely over the entirety of the circumferentially spaced apart notches;
• wherein the circumferentially spaced apart notches form a plurality of teeth, each tooth having a root and a crest, and wherein a width of each tooth tapers between its root and crest;
• wherein the width of each tooth is narrowest at its crest;
• wherein a depth of each tooth is greater than or equal to one-half of the width of the tooth;
• wherein each of the notches is identically shaped and sized;
• wherein a securing aperture is formed through each tube mount, and wherein a second fillet weld couples each of the axle tubes to a corresponding one of the tube mounts, each of the second fillet welds being formed about a perimeter of an associated one of the securing apertures such that each of the second fillet welds occurs substantially completely over the entirety of the associated one of the securing apertures.

An assembly comprising:

• a tube mount having a tubular side wall, a plurality of circumferentially spaced apart notches formed on a first end of the tubular side wall, and a securing aperture formed through the tubular side wall, the notches form a plurality of teeth;
• a tube received into the tube mount;
• a first fillet weld coupling the tube to the tube mount, the first fillet weld being formed about a perimeter the first end such that each of the first welds is formed substantially completely over the entirety of the teeth;
• and
• a second fillet weld coupling the tube to the tube mount, the second fillet weld being formed about a perimeter of the securing aperture such that the second fillet weld is formed substantially completely over an inside perimeter of the securing aperture.