You did let it cool naturally I take it? If so it could just have been a natural weak part of the spring.
Needid to reduce a springs length today.
Used my dremil to cut to desired length ,heated until red closed end coil .
Used the dremil to flatten the end carefully then a file over the whole base coil to get a flat even base before using stone and wet n dry before a pollish up
Using the file the spring broke on the coil bellow.
Never happened before, I'm sure the process was correct .
Why did it break ?. Was a used spring looked fine ,no big bend
Confused .com.
You did let it cool naturally I take it? If so it could just have been a natural weak part of the spring.
God rest ye jelly mental men
Probably cracked when it was overly long, was it a OX spring as these seem to readily crack due to the
square section localising stresses .