Honeycomb structure and process for production thereof

摘要

There is disclosed a honeycomb structure in which a positional deviation is not easily occurred by vibration or the like in the honeycomb structure held in a can, of which the strength reduction is small and which can be easily produced, and a process for production of the structure. The honeycomb structure 1 comprises a cell structure portion 20 constituted of partition walls 2 arranged so as to form a plurality of cells 3 extending through an axial direction, and an outer peripheral wall 7 disposed in an outer periphery of the cell structure portion 20. A surface roughness Ra of an outer peripheral surface of the outer peripheral wall is 1 to 80 mum.