Machining 101: What is Electrical Discharge Machining?
WEBJul 10, 2021 · Photo Credit: Adam Wysuph, MC Machinery. Electrical discharge machining, or EDM, is a non-contact process that can machine parts regardless of their hardness. It involves placing an electrode or wire and an electrically conductive workpiece into a circulating dielectric fluid. The fluid acts as an insulator until a specific spark gap and ...
Choosing The Right Grinding Wheel | Modern Machine Shop
WEBDec 15, 2000 · Usually vitrified wheels are used at speeds less than 6,500 surface feet per minute. At higher speeds, the vitrified bond may break. Organic bond wheels are generally the choice between 6,500 and 9,500 surface feet per minute. Working at higher speeds usually requires specially designed wheels for high speed grinding.
How To Passivate Stainless Steel Parts | Modern Machine Shop
WEBOct 1, 2003 · This method of passivation can be accomplished in less than 2 hours. Here is the step-by-step procedure: After degreasing, soak the parts for 30 minutes in a 5 percent solution of sodium hydroxide at 160°F to 180°F (71°C to 82°C). Then rinse the part thoroughly in water.
Choosing Your Carbide Grade: A Guide | Modern Machine Shop
WEBOct 30, 2021 · BB64 — PVD grades for nickel-based alloys. BB23 — CVD grades for milling cast iron. NN — Hardness Level: The last two digits, in most cases, reflect the hardness level of the different grades in a series. The number usually ranges from 05 to 45 according to the same system explained above about the grade charts.
Machining 101: What is Turning? | Modern Machine Shop
WEBAug 14, 2021 · Turning Tools. Tooling. Basics. Evan Doran. Associate Editor, Modern Machine Shop. Turning is the process of using lathes to remove material from the outer diameter of a rotating workpiece. Single-point tools shear metal from the workpiece in (ideally) short, distinct, easily recyclable chips. CNC …
The L.S. Starrett Co. Suppliers Showroom - Modern Machine Shop
WEBAbout The L.S. Starrett Co. Founded in 1880 and headquartered in Athol, MA U.S.A., The L.S. Starrett Company is a leading global manufacturer of precision measuring tools and gages, optical comparators and vision systems and force and hardness testing solutions.
Machining 101: What is Waterjet Cutting? | Modern Machine Shop
WEBSep 4, 2021 · Associate Editor, Modern Machine Shop. Waterjet cutting, at its simplest, is the process of a high-pressure jet of water cutting into a material. The technology often compliments other machining techniques such as milling, laser, EDM and plasma. No hazardous material or vapors form during the waterjet process, and …
Aluminum Material Removal Rate New World Record?
WEBNov 21, 2017 · Sweden’s Modig Machine Tool says it has achieved the world’s highest material removal rate in aerospace-grade aluminum at 1,001 cubic inches per minute. David Modig (left), president of Modig Machine Tool in Sweden, and Keith Lopez, president Modig—North America, demonstrate the chips removed by …
How to Become a Defense Industry Machined-Parts Supplier
WEBJul 7, 2019 · Defense contractors may have an obligation to solicit the participation of companies with certified status, such as small, minority- or veteran-owned businesses. 3. Register as a supplier. Many defense prime contractors also have registration programs by which subcontractors such as machine shops may apply.
A New Milling 101: Milling Forces and Formulas
WEBMar 21, 2011 · MRR = .200 x 1.64 x 19.5 = 6.4 in3/min. For horsepower at the motor (HPm), use formula: HPm = HPC/E. In determining horsepower consumption, “K” factors must be used. The “K” factor is a power constant that represents the number of cubic inches of metal per minute that can be removed by one horsepower.
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