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ㄚ坤 發問時間: 社會與文化語言 · 1 0 年前

焊接圖面內容翻解

Fig. 11 suggests that the position at the end of the weld

will experience the highest mechanical strain, and there is

the smallest mechanical strain at the start of weld in the

same pass weld and the driving forces of the first pass are

larger than the second pass in the same position. The

results predict that weld solidification cracking is more

likely to occur at the ending positions of the weld during

the first pass and second pass welding, which agrees well

with the general concept and the surface fusion welding

without filling metals [23].

Fig. 12 shows the driving force distribution patterns

with 1.0 kJ/mm heat input of the first pass welding and

1.2 kJ/mm heat inputs of the second, third and forth passes

welding are similar with Fig. 11.

3 個解答

評分
  • 1 0 年前
    最佳解答

    Fig. 14 shows that the driving forces are smaller than the material resistance of simulating模擬TVT, so there will not be solidification crack with 0.4 kJ/mm heat input of the first pass welding and 0.6 kJ/mm heat input of the second, third and forth passes welding.

    Fig. 15 shows the driving forces are bigger than the material resistance, so there will be solidification cracks with 1.0 kJ/mm heat input of the first pass welding and 1.2 kJ/mm heat input of the second, third and forth passes welding.

    2009/5/15圖14顯示驅動力小於模擬TVT的材料阻力,所以在第一道焊接輸入熱能0.4 kJ/mm(每毫米.400焦耳),而第二、三、四道焊接時輸入6 kJ/mm應不致產生固化爆裂。

    圖15顯示驅動力大於材料阻力,因此在第一道焊接時輸入熱能1.0 kJ/mm,而第二、三、四道焊接輸入1.2 kJ/mm就會導致固化爆裂。

    2009-05-15 02:37:22 補充:

    對不起,貼錯了,重貼一次!

    圖11使人聯想到在每道焊接中,結束時遭受到的機械張力最高,開始焊接時的機械張力最小,而在同一位置上第一道焊接時的驅動力是大於第二道的。

    這些結果預言了在第一道和第二道焊接時,收尾的位置上較常發生固化爆裂, 這也跟平常觀念及無填充金屬的表面融合焊接不謀而合。

    圖12 顯示在第一道焊接時輸入熱能1.0 kJ/mm,第二、三、四道焊接都輸入熱能1.2 kJ/mm時,驅動力的分佈型態.與圖11是類似的。

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  • 匿名使用者
    6 年前
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  • 1 0 年前

    HI!!

    圖 11 表明焊接的末尾位置

    會遇到,最高的機械應力,

    在焊接的開頭,最小的機械應力,

    相同傳遞焊接,驅動力的第一遍

    大於第二步在同一位置。 在

    結果預測焊接凝固開裂是更多

    可能發生在焊接的結束位置

    首次通過和焊接,好同意的第二個通

    一般的概念與表面融合焊接

    沒有填充金屬 [23]。

    圖 12 顯示了駕駛的力分佈

    與 1.0 KJ/毫米熱焊接第一遍的輸入和

    1.2 KJ/毫米熱輸入的第二個、 第三和第四傳遞

    焊接與圖 11 相若。

    OK?!!!

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