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首頁(yè) >> 新聞資訊 >>行業(yè)動(dòng)態(tài) >> 頻譜諧波振動(dòng)時(shí)效的原理
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頻譜諧波振動(dòng)時(shí)效的原理

頻譜諧波振動(dòng)時(shí)效技術(shù)是通過(guò)傅立葉分析方法對金屬工件進(jìn)行頻譜分析，找出工件的幾十種諧波頻率，從中優(yōu)選出效果最佳的5－7組諧波頻率進(jìn)行處理，達到多維消除殘余應力的目的，提高尺寸精度及穩定性，防止其變形、開(kāi)裂，廣泛應用于金屬工件鑄、鍛、焊以及機加后的殘余應力消除和均化。
頻譜諧波通過(guò)傅立葉分析，不需掃描，在100HZ內尋找低次諧波，施加合適的能量在多個(gè)諧波頻率振動(dòng)，引起高次諧波累積振動(dòng)產(chǎn)生多方向動(dòng)應力，與多維分布的殘余應力疊加，造成塑性變形，從而降低峰值殘余應力，同時(shí)使殘余應力分布均化。

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