jamesthomsan Posted January 3, 2020 Share Posted January 3, 2020 Hi Everyone, Please share some advise. How to use reamers to produce an accurate size on a pre drilled hole? Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 3, 2020 Share Posted January 3, 2020 Do you have any Machinist books that cover such tasks? If you are in the USA you can ILL them from your public library. Quote Link to comment Share on other sites More sharing options...
Anachronist58 Posted January 3, 2020 Share Posted January 3, 2020 Give us a specific example, including: Machine you are using. Be specific. Type of material you wish to ream (be specific: "metal, or steel, is not a satisfactory answer). Diameter of hole. Depth of hole; blind, or through? Tolerance of finished hole. "Accurate Size" is a relative term. Do you have reamers on hand, or have you yet to acquire these? Welcome to the Forum. Robert Taylor Quote Link to comment Share on other sites More sharing options...
arftist Posted January 16, 2020 Share Posted January 16, 2020 Using a drill press mount work securely. Drill 1/64" underside hole. Ream. You may find acceptable results from simply using a new drill bit. Quote Link to comment Share on other sites More sharing options...
Anachronist58 Posted January 17, 2020 Share Posted January 17, 2020 The OP has not returned to the site since his one post. Quote Link to comment Share on other sites More sharing options...
Jamie Landseer Posted February 3, 2020 Share Posted February 3, 2020 Reamers are machinists best choice for finishing a drill. They’re useful in achieving accurate dimension holes that have been bored, drilled or cored. Tips for performing reaming accurately: To perform reaming correctly, you must prepare yourself well. Few of the essential factors that be kept in mind are as follows: Leave the exact amount of stock after drilling Selecting the right reamer for a job Understanding the time when must you ream twice You can leverage various types of reamers, including chucking, adjustable, and spiral flute reamers. The surface finish attained by a reamer depends on the type of workpiece material. For cast iron, it’s 50 to 80 rms For steel, it’s 30 to 60 rms Moreover, a PCD reamer can even achieve a fine finish of 8 rms in aluminium workpiece. Note: Reamers are not useful for straightening the workpiece. However, they can be used to enlarge a drilled hole to a particular size by removing a small amount of stock. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 3, 2020 Share Posted February 3, 2020 This guy's questions sound a lot like homework assignments. I have a personal belief in not doing folks homework for them. If I wround the poster; my apologies! Quote Link to comment Share on other sites More sharing options...
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