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.
Properly Reading Dial Indicators | Modern Machine Shop
WEBMay 6, 2021 · Most dial indicators are then used in a comparative mode using a balanced dial, with minus (-) readings on the left of 0 and plus (+) readings to the right of 0. The goal is that the plus and minus tolerances are in the range of the 10 and 2 o’clock positions on the dial. There are also large-approach and over-tolerance ranges to see the work ...
Machining 101: What Are Coordinate Measuring Machines?
WEBSep 11, 2021 · Associate Editor, Modern Machine Shop. A coordinate measuring machine (CMM) is a measurement tool that consists of a motion system, a probing system, a computer and measurement software. The frames and base of CMMs must be secure from vibration and thermally induced variations. Although aluminum and granite frames are …
Machining 101: What is Turning? | Modern Machine Shop
WEBAug 14, 2021 · 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 lathes with constant surface speed control enable the operator to …
What Makes a Top Shop Profitable? | Modern Machine Shop
WEBNov 23, 2019 · Since 2012, more than 3,000 shops have responded to the Top Shops survey, providing us with a deep well of data. In addition to gathering numerical data, such as capacity utilization, lead time and profit margin, the survey gathers data on what machine tools, HR programs and improvement methodologies see use in the shop.
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 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.
Shop Management Software, ERP | Modern Machine Shop
WEBAug 23, 2022 · Shop Management Software, ERP. ERP stands for “Enterprise Resource Planning.”. Some of the functions associated with ERP and related management software include: Costing or estimating the time and cost of production, scheduling a job for production, and in-process job tracking, or logging each step in a part’s progress through …
10 Lean Manufacturing Ideas for Machine Shops
WEBAug 1, 2018 · In Shop 1, produce orders for parts or products that are in the Runners/Repeaters segment of the product mix. In Shop 2, produce orders for parts or products that are in the Strangers segment of the product mix. Set up Shop 2 to operate as a quick-turnaround shop with resources such as additive manufacturing, flexible …
Grinding | Modern Machine Shop
WEBAug 12, 2022 · Grinding is also an effective process for machining workpiece materials that are too hard for milling or turning. Grinders for round parts include cylindrical and centerless grinders. Grinders for flat surfaces are called surface grinders. Form grinders move the work and/or the wheel in various axes to grind surfaces that are precisely contoured.