English to Russian Tech/Engineering Physics tips and guidelines for stamp forming

Добрый день!
Помогите, пожалуйста, перевести "sine of the angle component of force" в следующем контексте:

Forming Guidelines and Tips

Draft on the side walls of a formed part are neccesary for two reasons:
1) offers some compaction due to the sine of the agle component of force that pushes directly through the thickness of the laminate.
2) Allows for ease of extraction of the part from the tool.

Заранее спасибо!