公开(公告)号：EP2527831A1

公开(公告)日：2012-11-28

申请号：EP11859014.0

申请日：2011-10-28

申请人： NSK Ltd.

发明人： MITSUMURA, Munetaka ,  OKITA, Shigeru

IPC分类号： G01N29/44

CPC分类号： G01N29/043 ,  G01N29/4427 ,  G01N2291/02827

摘要： There is provided an aluminum die cast part strength evaluating method for correctly evaluating strength of an actual aluminum die cast part. Strength of the actual aluminum die cast part (1) will be correctly evaluated by conducting ultrasonic inspection of a predetermined range of a high stress region (5) of an aluminum die cast part (1), which is found out through stress analysis beforehand, for an internal defect, and evaluating that the aluminum die cast part (1) has a predetermined strength if the maximum internal defect area within the predetermined range is equal to or less than a predetermined value. Moreover, an actual aluminum die cast part (1) with a predetermined strength will be evaluated correctly by: evaluating strength using the aluminum die cast part strength evaluating method and setting the maximum-possible internal defect area within the predetermined range of the high stress region to 0.8 mm 2 or less.

摘要翻译： 有在铝压铸部件的强度的评价方法提供了一种用于准确地评价实际的铝压铸部件的强度。 实际铝压铸部件（1）的强度将通过进行高应力区域的预定范围的超声波探伤（5）的铝压铸部件的（1），其全部通过应力分析，发现出预先正确地评价， 对的内部缺陷，并且评价做的铝压铸部件（1）具有预定的强度，如果在预定的范围内的最大内部缺陷面积大于等于预定值或更小。 使用铝压铸部件的强度评价强度的评价方法与高应力区域的预定范围内设置最大可能的内部缺陷区域：更以上，在实际的铝压铸部件（1）与预定的强度将被正确地通过评估 至0.8mm 2或更小。

公开(公告)号：EP2821772A1

公开(公告)日：2015-01-07

申请号：EP12870021.8

申请日：2012-07-24

申请人： NSK Ltd.

发明人： MITSUMURA, Munetaka ,  OKITA, Shigeru ,  UCHIDA, Hiroyuki

IPC分类号： G01N3/22 ,  B22C9/24 ,  B22D17/00 ,  G01N29/04

CPC分类号： G01N3/22 ,  B22C9/24 ,  B22C19/04 ,  B22D17/00 ,  B60R25/02115 ,  E05B15/1614 ,  G01N29/11 ,  G01N2203/0067 ,  G01N2291/0234 ,  G01N2291/02827 ,  G01N2291/044

摘要： There are provided a strength evaluation method of a die casting product capable of appropriately evaluating the strength of the die casting product, and a die casting product in which the strength is evaluated by the strength evaluation method. A breakage test is performed by a simple strength tester after casting, and then, a strength reduction ratio is estimated based on an area ratio of cold flakes in a broken surface obtained by broken surface observation.
Alternatively, ultrasonic flaw detection is performed for an internal defect in a predetermined range of a high stress portion of the die casting product, calculated by stress analysis in advance, and the die casting product is evaluated to have a predetermined strength when a defect ratio obtained by dividing a total area of the internal defect in the predetermined range by a total defect detection area is less than or equal to a predetermined value.

摘要翻译： 提供了能够适当地评价压铸产品的强度的压铸产品的强度评估方法和通过强度评估方法评价强度的压铸产品。 在铸造后，通过简单的强度试验机进行断裂试验，然后基于通过破碎的表面观察得到的破裂面中的冷片的面积比来推定强度降低率。 或者，对于预先通过应力分析计算的压铸产品的高应力部分的预定范围内的内部缺陷进行超声波探伤，并且当获得的缺陷率时，将压铸产品评价为具有预定强度 通过将预定范围内的内部缺陷的总面积除以总缺陷检测区域小于或等于预定值。