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Oct 1, 2008 · American Machinist is a center for ideas and insights on technologies for machining, cutting, tooling, forming, manufacturing materials, robotics, quality, and shop operations.
Cutting Tools - American Machinist
Aug 1, 2024 · Two new milling inserts lower the stress on machines and cutting tools, improving the milling process stability, significantly reducing chatter, vibration and stress on the equipment...
Chapter 17: Grinding Methods and Machines - American Machinist
Jun 29, 2020 · G-ratio. The G-ratio is the ratio of the amount of stock removed versus the amount of wear on the wheel, measured in cubic inches per minute. This ratio will vary from 1.0 to 5.0 in very rough grinding, and up to 25.0 to 50.0 in finish grinding.
5 Common Machine Shop Injuries, and How to Prevent Them
Nov 27, 2019 · 5. Poor guarding techniques — When it comes to heavy machines, a correctly placed guard or barrier can be the difference between safe operation and serious injury, like loss of a limb. It goes beyond having machine guards in place, however. Sometimes the right system exists but malfunctions, or does not correctly identify hazard situations, such as someone’s finger sitting in a saw or gear ...
Comparing Different Carbon Steel Grades | American Machinist
Jun 24, 2018 · High-carbon steel — High-carbon steel grades are hardest and strongest among the three types of steels addressed here. Generally, the carbon content will range from 0.60% to 1.4% of the total weight. However, high-carbon steel grades are ductile, too, and with heating and tempering these materials also can be hardened.
Tips for Creating Better Machine Shop Workflow - American …
Jul 19, 2023 · These five design factors will help manufacturing operations achieve a more efficient, effective, and sustainable process flow – and promote opportunities for growing the business...
Chapter 8: Drills and Drilling Operations - American Machinist
Jun 27, 2020 · High helix drills: This drill has a high helix angle, which improves cutting efficiency but weakens the drill body. It is used for cutting softer metals and other low strength materials. Low helix drills: A lower than normal helix angle is sometimes useful to prevent the tool from "running ahead" or "grabbing" when drilling brass and similar materials.
Cutting Tool Applications, Chapter 14: Broaches and Broaching
Jun 29, 2020 · Cutting teeth: Broach teeth are usually divided into three separate sections along the length of the tool: the roughing teeth, semi-finishing teeth and finishing teeth. The first roughing tooth is proportionately the smallest tooth on the tool. The subsequent teeth progressively increase in size up to and including the first finishing tooth.
Cutting Tool Applications, Chapter 7: Shaping & Planing
Sep 26, 2019 · Saddle: The saddle moves up and down (Y axis), usually manually, to set the rough position of the depth of cut. Final depth can be set by the hand crank on the tool head. Column: The column supports the ram and the rails for the saddle. The mechanism for moving the ram and table is housed inside the column.
Cutting Tool Applications, Chapter 6: Grooving and Threading
Oct 2, 2024 · So that both insert and toolholder fit into the groove, both the outer and inner diameters of the groove must be considered. The diameter measured to the outside of the blade determines the limit for the smallest possible diameter which can be machined, and the diameter measured to the inside of the blade determines the limit for the largest possible groove diameter.