バリがあると、部品Ａが上がる時、metalに応力がかかり、変形が発生す

バリがあると、部品Ａが上がる時、metalに応力がかかり、変形が発生する。
しかしこれは毎回発生するものではない。
発生頻度は稀である

結果 (英語) 1:

If there is a burr, when part A goes up, stress is applied to the metal, deformation occurs.
However, this does not occur every time.
The frequency of occurrence is rare

結果 (英語) 2:

Bali is part A rise, when stress is metal, deformation may occur.
But this is not what happens every time.
Frequency of occurrence is rare in

結果 (英語) 3:

Bali is the parts A increases the metal when the stress and deformation occurs.
however, this is not what you want to occur every time.
frequency of occurrence is rare.