Create your welded word/title/pattern in PSP using solid black shapes - just type the letters separately then push them together until they are how you want them - save as jpeg
Open Inkscape import your jpeg
Path>trace bitmap
Delete the original image
Save as .svg and you're away.
remember that PSP has a lot of bold shapes ready drawn for you so by making them into .svg files you can cut those as well.
Have fun
Susibi

( in this phase of experimentation sleep is an optional!!)