Other Cutting Operations
Other cutting operations include the following:
- Shaping - a single-point cutting machine cuts in a straight line by repeated parallel strokes, gradually moving across a flat surface.
- Planing - similar to shaping, but the workpiece moves under a stationary cutting tool.
- Drilling - a cylindrical cutting tool with multiple fluted cutting edges arrayed in a spiral (e.g., the interior of the barrel of a firearm).
- Reaming - a cutting technique that it is sometimes used after drilling to produce accurate finely finished holes.
- Broaching - multitooth cutting tool that moves against a stationary workpiece. It can remove metal on both interior and exterior surfaces. Each tooth cuts slightly deeper than the previous one and removes only a small thickness of metal. A cylindrical broach is one type of tool used to put rifling in the barrel of a firearm.
- Sawing - a multitoothed cutting tool in which the cutting edges are arranged in line.
- Filing - material is formed and removed using teeth that are shallow and broad (the reverse of a saw blade).
- Abrasive machining - thousands of tiny cutting edges made up of individual abrasive grains and used as a finishing operation. Each abrasive grain removes a minute amount of material. Abrasive machining includes simple grinding, lapping, tumbling, and numerous other specialized applications of abrasives.
Additional Online Courses
- What Every First Responding Officer Should Know About DNA Evidence
- Collecting DNA Evidence at Property Crime Scenes
- DNA – A Prosecutor’s Practice Notebook
- Crime Scene and DNA Basics
- Laboratory Safety Programs
- DNA Amplification
- Population Genetics and Statistics
- Non-STR DNA Markers: SNPs, Y-STRs, LCN and mtDNA
- Firearms Examiner Training
- Forensic DNA Education for Law Enforcement Decisionmakers
- What Every Investigator and Evidence Technician Should Know About DNA Evidence
- Principles of Forensic DNA for Officers of the Court
- Law 101: Legal Guide for the Forensic Expert
- Laboratory Orientation and Testing of Body Fluids and Tissues
- DNA Extraction and Quantitation
- STR Data Analysis and Interpretation
- Communication Skills, Report Writing, and Courtroom Testimony
- Español for Law Enforcement
- Amplified DNA Product Separation for Forensic Analysts