# CTE Resource Center - Verso - Precision Machining Technology I Task 2130873439

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Perform between-centers turning operations for straight turning.

Definition

Performance should include

  • producing a part that matches the process plan and the blueprint specifications
  • using appropriate trade techniques and speeds and feeds
  • matching the specifications with at least three diameters within ±.002 inch
  • finishing the part, based on the following criteria:
    • One UNC external thread
    • One UNF external thread
    • An end-for-end swap
    • Finishes to be at least 125 micro-inches, with no sharp edges.

Process/Skill Questions

  • What is the practical function of turning between centers?
  • What are some machine parts that may be turned between centers?
  • Why should one not remove the center from a chuck before machining the part?