Question about d1.1 ut cal

Date 04-12-2012 14:33

I'm not real sure what your question is,...but I'm going to take a shot at it....

If you are asking about whether to use 14db or 19db over your reference level to scan, then look at Table 6.2 or Table 6.3 depending on if it is statically loaded or or cyclically loaded, and note the length of your soundpath and use the chart at the bottom right of each of those tables to set your scanning db.

If this isn't your question, then ask again and I will try to help where I can.

By ggarso2000 (*)

Date 04-12-2012 14:43

Put it this way once u see what your sound path is in the part
Do you use the full v path or just the sound path of leg 1
Hope that helps lol

By jwright650 (*****)

Date 04-12-2012 15:04

use the sound path of just leg 1, not the whole V-path. Just from BIP at the nearside surface through the part to the farside surface.

By ggarso2000 (*)

Date 04-12-2012 16:23

Thanks someone was trying to tell me differently

By Bill M

Date 04-12-2012 20:44

I am making some assumptions:

I assume you have a butt weld, on 2-inch plate and weld is ground flush

The entire weld volume is done using a 70-deg transducer, first leg only
When scanning the middle half of the weld joint, your sound path will be between 1-1/2" & 4-3/8"
When scanning the bottom quarter of the weld your sound path will be between 4-3/8" and 5-7/8".

Use these sound paths to determine the scanning level increase (increase in dB above the reference level) as Jwright mentioned above table 6.2 or 6.3

If the weld is not ground flush, you have some more work to do....