Alantum Corporation

Jong-Kwang Kim

Kwon-Oh Oh

Gi-Young Kim

Jungsuk Bae

Deok-Su Ryu

Woo-Joo Jeon

Disclosed is a method of manufacturing a porous metal foam cone assembly. The metal foam cone assembly according to the present invention includes providing a porous metal foam sheet; cutting the porous metal foam sheet to be in a predetermined shape using a cutting press that is provided with a knife tool; disposing the cut metal foam sheet on a base plate of a forming die and then primarily forming the metal foam sheet using a mandrel of a cone shape; secondarily forming the metal foam sheet using a left slider and a right slider of the forming die; and pressing an overlapping portion of the metal foam sheet using a stamping jig of the forming die after the forming using the left and right sliders.

Method of manufacturing porous metal foam cone assembly having high surface area

Provided is an exhaust gas filter, including: an external case connected with an exhaust pipe; a filtering unit provided in the external case; a filtering path supplying exhaust gas to the filtering unit; and a pressure relief flange provided in the external case to discharge exhaust gas by bypassing the filtering unit. According to an exemplary embodiment of the present invention, an exhaust gas filter can prevent the exhaust gas filter from being broken by circuitously discharging exhaust gas even when particular matters collected in the exhaust gas filter increase and thus, pressure in the exhaust gas filter excessively increases Further, engine components such as an EGR, a turbocharger, and the like can be prevented from being broken or outputs thereof can be prevented from deteriorating.

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Seoul, South Korea

Jong-Kwang Kim