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采用爆炸焊接方法在厚20毫米LY_(11)硬铝板的φ15圆周上均匀地焊上三根φ10×1毫米的LF_2防锈铝管(见图1)。氦气质谱检漏仪测得焊缝漏气率为8×10~(-10)乇·升/秒。切片冲剪试验,三孔平均焊缝冲剪强度为LY_(11)硬铝板的冲剪强度(14.7公斤/毫米~2)。金相观测无
The explosion-welding method is used to uniformly weld three φ10 × 1 mm LF_2 rust-proof aluminum tubes on the φ15 circumference of a 20 mm thick LY_ (11) hard aluminum plate (see FIG. 1). The leak rate of the weld measured by helium mass spectrometer leak detector was 8 × 10 ~ (-10) Torr · L / s. Slice punching shear test, three holes average weld crevice shear strength of LY_ (11) ductile shear strength (14.7 kg / mm ~ 2). No metallographic observation