Tutorial:"How to use spinal bend command in PTC creo 2 "
Step 1: Spinal Bend is used to bend a solid along a spine...
First create a solid
Step 2: Go to Engineering<Spinal Bend command
Step 3: Select the option select spine if you already have a spine otherwise sketch spine
Step 4: First select the solid that is to be bent and then select the sketching plane and keep sketching view as default
Step 5: Draw the spine... Here I have drawn two lines and a arc in between them just make sure that arc is tangent to both your lines... you may use fillet command for arc
Step 6: Select the plane about which the solid is to be bent
Step 7: Your solid will be bent according to the sketched spine