MOLD OF MAKING INNER-FIN AND METHOD OF MAKING THEREFOR, AND INNER-FIN THE SAME

摘要

The invention will, by providing a step-by-step concave portion prepared for forming a mold, an object to be processed placed between the forming a production mold upper and lower molds is stopped after moving forward by a predetermined distance to eliminate the defects of the object generated in the conventional production mold as with the lower mold, while repeating the operation, the engaged lowered to the object to be processed by the upper mold is ridorok the upper and lower pressing the first concave-convex part-extended asperities - Last Maximum Height of the order of stepwise uneven portion is formed, in particular, the forward step movement in the production method from the center portion of the object gradually to form a side-by-side unevenness by fine by increasing form the right and left sides by an oil cooler inner pins manufacturing mold which makes possible to prevent damage of the object, and it is, and hence the inner fin by It relates. ;