Choosing The Right Grinding Wheel | Modern Machine Shop
WEBDec 15, 2000 · Another factor that affects the choice of wheel bond is the wheel speed in operation. 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.
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.
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.
Metalworking’s leading information resource | Modern Machine …
WEB6 days ago · Advertisement. Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; application videos; business management content; networking; and event information that companies need to be competitive.
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 …
Workholding | Modern Machine Shop
WEBAug 16, 2017 · Workholding. Workholding refers to any device that is used to a secure a workpiece against the forces of machining. The most basic workholding device is a simple clamp, but workholding can also involve complex fixtures that are custom-built for particular parts. Other common workholding devices include vises …
Centerless Grinding: Not Magic! | Modern Machine Shop
WEBDec 15, 2000 · Centerless grinding workblade angles range from 0 to 45 degrees. For most centerless grinding applications, a top blade angle of 30 degrees seems to provide the best results. "The basic rule is the steeper the angle of the blade the faster the rounding action," says Mr. Payne. "There are limits, however.
Properly Reading Dial Indicators | Modern Machine Shop
WEBMay 6, 2021 · At the 10-2 position, about 20% of the dial is large enough to easily view the intolerance position. Now, most dial indicators will have more than one revolution of the hand, usually at least 2.5 revolutions, and there may be a small hand on the dial counting the revolutions to prevent user errors. But in the end, the comparative reading ...
How to Correctly Measure Surface Finish | Modern Machine Shop
WEBDec 21, 2021 · When measuring surface roughness, the first step is to filter out the waviness component from the roughness component. This is done by breaking the total measuring length of the surface finish measuring stroke into small segments, called cutoff length. Typically, the default cutoff length is set at …
Cutting Tools | Modern Machine Shop
WEB6 days ago · Cutting Tools. The broad category of “cutting tools” includes all of the consumable tooling involved in milling, drilling, turning and other lathe and machining center operations. Drills, end mills, taps, reamers and inserts are all included here. Consumable tooling used on certain other types of machine tools is included here as well.