Abstract: A method for welding an edge of a first member to a side surface of a second member is provided. The first member and the second member are joined to one another at a joint. The method includes beveling an edge of the first member. The method also includes positioning the edge of the first member proximate the side surface of the second member. The method further includes supplying welding material via a welding wire along the edge of the first member to create a joint between the first and second members. Supplying welding material includes controlling a feed rate of the welding wire, such that a weld bead formed at the joint defines a concave cross-section.

Abstract: An exhaust treatment assembly is provided, which includes a plurality of first grid members. The assembly also includes a plurality of second grid members engaged with the first grid members, the grid members are arranged to form spaces. A plurality of exhaust filter elements is disposed in the spaces and forms an exhaust filter block. A first side wall is engaged with the first grid members, and is adjacent a first edge of the filter block. A second side wall is engaged with the second grid members, and is adjacent a second edge of the filter block. An insulator is located between the first side wall and the first edge of the filter block, and located between the second side wall and the second edge of the filter block.