Oven appliance and a method for manufacturing a cooking chamber of an oven appliance

1. An oven appliance, the oven appliance defining a vertical direction, a lateral direction and a transverse direction, the vertical, lateral and transverse directions being mutually perpendicular, the oven appliance comprising:

a top panel having an aluminum coating disposed on an outer surface of the top panel;

a bottom panel spaced apart from the top panel along the vertical direction, the bottom panel includes a pair of side flanges extending upwardly along the vertical direction and spaced apart from each other along the lateral direction, the bottom panel also defining a sump positioned below the pair of side flanges along the vertical direction;

a pair of side panels spaced apart from each other along the lateral direction, the pair of side panels extending between the top and bottom panels along the vertical direction, each side panel of the pair of side panels defining an outer surface and having a return flange spaced apart from the outer surface along the lateral direction, each side flange of the pair of side flanges positioned adjacent a respective return flange of the pair of side panels such that each side flange of the pair of side flanges and the respective return flange of the pair of side panels define a gap along the lateral direction therebetween;

a back panel extending between the top and bottom panels along the vertical direction; and

a plurality of fasteners, each fastener of the plurality of fasteners extending through the top panel or the bottom panel and a respective return flange of the pair of side panels in order to mount the pair of side panels to the top and bottom panels,

wherein an enamel coating disposed on the outer surface of each side panel of the pair of side panels, an outer surface of the bottom panel and an outer surface of the back panel.

2. The oven appliance of claim 1 , wherein the plurality of fasteners do not extend through the outer surface of each side panel of the pair of side panels.

3. The oven appliance of claim 1 , wherein each side flange of the pair of side flanges defines a plurality of embossments, the plurality of embossments of each side flange of the pair of side flanges positioned on the respective return flange of the pair of side panels such that the plurality of embossments extend across the gap to the respective return flange.

4. The oven appliance of claim 3 , wherein a respective fastener of the plurality of fasteners extends through each embossment of the plurality of embossments and the respective return flange of the pair of side panels in order to mount the pair of side panels to the bottom panel.

5. The oven appliance of claim 1 , wherein the back panel defines an outer surface and has a return flange spaced apart from the outer surface of the back panel along the transverse direction.

6. The oven appliance of claim 5 , further comprising an additional plurality of fasteners, each fastener of the plurality of additional fasteners extending through the top panel or the bottom panel and the return flange of the back panel in order to mount the back panel to the top and bottom panels.

7. The oven appliance of claim 1 , wherein the top panel defines a tray, the tray having an angled surface positioned proximate a front portion of the top panel.

8. The oven appliance of claim 7 , further comprising a light assembly mounted to the top panel at the angled surface of the tray.

9. The oven appliance of claim 1 , further comprising a heating element positioned below the bottom panel along the vertical direction.

10. A method of manufacturing a cooking chamber of an oven appliance, comprising:

providing a top panel, a bottom panel, a back panel and a pair of side panels;

forming a plurality of embossments on an upwardly extending side flange of the bottom panel and on an upwardly extending rear flange of the bottom panel, the bottom panel defining a sump positioned below the side flange and the rear flange of the bottom panel;

applying an enamel coating onto a respective outer surface of the bottom panel, the back panel and the pair of side panels;

applying an aluminum coating onto an outer surface of the top panel; and

mounting the back panel and the pair of side panels to the top panel and the bottom panel with a plurality of fasteners after said steps of applying the enamel coating and applying the aluminum coating, said step of mounting comprising extending fasteners of the plurality of fasteners through the plurality of embossments on the side flange of the bottom panel and a return flange of the pair of side panels and extending fasteners of the plurality of fasteners through the plurality of embossments on the rear flange of the bottom panel and a return flange of the back panel, the plurality of embossments of the side flange positioned on the return flange of the pair of side panels such that the side flange and the return flange define a gap therebetween.

11. The method of claim 10 , further comprising embossing a plurality of rack supports on the pair of side panels prior to said step of applying the enamel coating.