| abstract |
(57) [Problem] To provide a manufacturing method of a honeycomb structure with slits, which can perform accurate and precise slit drilling by breaking only a target cell row and is suitable for mass production. SOLUTION: This is a method for manufacturing a honeycomb structure with slits, which has a plurality of cell rows in which a large number of cells are arranged in parallel, and has slits formed along the cell rows and provided with slits communicating with an external space. By pressing a slit-formed portion with a pressing member 2 that is a thin plate-shaped non-rotating member against a dried or fired body 13 having a honeycomb structure obtained by extrusion molding, drying and / or firing, the sheet is broken. , Make a slit. |