Archive for the ‘Reaming’ Category

 Expansion Reamers: Precision holes require precision tools. When machinists need an exact size hole, they want the best tool available to achieve the desired diameter. That’s a job for a reamer. The appropriate amount of stock removal for carbide tipped reamers is typically 2-3 percent of the finished hole size.  This is so the reamer […]

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The flute configuration of a reamer is important.  Selecting the correct configuration helps optimize tool life and hole finish. Left hand spiral reamers should be selected for through holes.  A through hole has an opening on the other end.  If you put your eye up to the hole, you would be able to see out […]

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Two years ago, we began a research project to expand our horizons and to find new ways to reach out to our customers, both new and long standing. Through our brainstorming we looked at and investigated the various ways other businesses were reaching out their customers and found, surprisingly, that in our industry of cutting […]

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Knowing the hardness of the material you are machining is important.  It helps determine the appropriate speeds and feeds for your application and can affect the design of the tool being used in the machining process.  Despite this importance, it is surprising, although very common, that many machinists do not know the hardness of the […]

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The majority of requests I receive for special tools ends with something along the lines of “…and I need them tomorrow.”  This is frequently possible if semi-finished tools can be used to make the tool the customer is asking for.  If the tool has to be made from scratch, forget it.  Best case scenario would […]

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Reaming Problem Solving

Posted: 17th April 2012 by brednane1981 in Reaming, Super Tool
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The first problem and probably one of the most common reaming problems is Poor Finish.  Possible causes include unequal chamfers, incorrect margins, excessive spindle runout, chatter, and insufficient cutting action.  Below is a table with possible solutions for each of the possible causes of poor finish: Possible Causes Possible Solutions Unequal Chamfers Regrind the reamer […]

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Pre-Ream Hole Size

Posted: 6th April 2012 by brednane1981 in Pre-Ream Hole Size, Reaming
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The amount of material left in the hole prior to reaming “pre-ream hole size” plays an integral role in the quality of the reamed hole. The pre-ream hole size affects characteristics in the reamed hole including hole finish, hole straightness, tool life, and cycle time. There are several ways in which the pre-ream hole size […]

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