ASTM A193/A193M B7 All Threaded Stud Bolts
API 6A 6D Flange Valve Wellhead ASME/ANSI Flange All Thread Stud Bolts
Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
Standard: IFI-136, ASME B16.5, DIN976
Inch Size: 1/4”-4” with various lengths
Metric Size: M6-M100 with various lengths
Other Available Grade:
ASTM A193/A193M B7, B7M, B16, B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.
Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
Machine Shop Tool Making, Machining A Finger Plate Clamping Tool – Part 1, by Clickspring.
A Finger Plate clamping tool is a valuable tool in any workshop, and is a great mini mill and mini lathe project. You can also modify the design to suit whatever stock you have in the shop, which means you can finally use some of that scrap you’ve been saving up for that special project.
In this first video of a 2 part series, I build the base for the tool, the cross hole jig, as well as the brass clamping nut. You will see plenty of knurling, lathe turning and milling. Visit the Clickspring website for other mini lathe projects.
Thanks for watching. If you enjoyed the video please give a thumbs up, and leave me a comment. Be sure to check out part 2 of the series.
If you would like to help support the creation of these videos, then head on over to the Clickspring Patreon page: https://www.patreon.com/clickspring
For more info on this tool build, as well as other tool making info, visit the blog site at https://www.clickspringprojects.com
Project Plans available from the Clickspring Store:
https://www.clickspringprojects.com/store.html
Other Videos to Watch:
How To Make A Clock Part 1 – Making The Frames
How To Machine A Small Lathe Carrier
https://youtu.be/zB9XhqzBNJs
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Transcript:
00:17 If a small part is too small to be held safely by hand, there’s often no easy way to hold it in a vise either. That’s where this Finger Plate Tool can help. It clamps the workpiece firmly to the tool base, and then the whole thing can either be hand held, or clamped on parallels in a vise.
00:41 Now the dimensions are not very critical, and can be modified to suit whatever stock you have at hand. For example I made my dimensions to suit this rod stock and this piece of scrap steel.
01:05 I roughly trimmed the raw stock for the base, and then squared it up on the mill.
01:25 The hole and groove have to be dead on with each other for the jig to give accurate results. The holes were opened up with a twist drill, and the counterbore for the bushing holder was put in with an end mill.
02:23 I would have liked to have used a double angle cutter to do this, but I don’t have one. So I tilted the work to 45 degrees, and then used a standard end mill.
02:42 I won’t know how successful I was with this,
until the very end when I do some test drilling. The V shape was then roughed out on the band saw. And then the cut was tidied up on the belt sander.
03:44 Next up is this bushing holder, which holds the little bushings to guide the drill for cross holes. The first step is to turn the basic shape on the lathe.
04:25 The center of the part is then drilled out
to the correct size, to accept the cross hole bushings. And then while its still attached to the parent stock, its taken over to the mill to put in that cross hole.
05:14 I wanted this hole to have a good surface
finish, so although I started the hole with a twist drill, I did the final sizing with an end mill. Back on the lathe, a light touch with a file knocks off the burr from the cross hole, and its ready to be parted off.
05:53 The parted surface needs a light facing cut and chamfer to clean it up. And I used a hand chamfering tool to knock the edges off the inside hole. A drop of loctite holds it in place.
07:17 I want this to have a nice knurled finish,
so I made a light pass to make sure the pattern was going down well, and then the knurl was taken to full depth. Once the knurl was complete, the excess was trimmed away, and the tapered profile of the part was formed.
08:49 Thats about half of the work for the tool
completed. In the next video, I’ll finish off the tool by making the lifting screw,the drilling jig bushings and the clamping finger.
References:
Finger Plate Clamping Tool books and plans (let me know if you are aware of any others):
“Workshop Practice Series Number 31″ Stan Bray
https://www.teepublishing.co.uk/books/workshop-practice-series/
“Tools For The Clockmaker And Repairer” John Wilding
https://www.ritetimepublishing.com/
“The Model Engineers Workshop Manual” George H Thomas
https://www.teepublishing.co.uk/books/in-your-workshop/model-engineers-workshop-manual/
“Model Engineer Magazine” Edition Vol 104, Issue 2596, 1951 Commander W.T. Barker
https://www.itech.net.au/modelengineer/
“The Machinist’s Bedside Reader” Guy Lautard
pages 88-91
Machine Shop Tool Making, Machining A Finger Plate Clamping Tool – Part 1
https://www.smithy.com (see transcription of video below)
Learn about the basics of metal lathe operations using our Smithy Granite combo lathe/mill/drill machines. You can visit us at www.smithy.com for more information or send us any questions about your project. Our trained technicians will be glad to help you with your project.
“The most widely used cutting tools on a vertical milling machine are the end mills. These mills have cutting edges on the sides and bottom. They are primarily used to make narrow facing cuts or to mill slots and pockets. You can also use the cutting edges on the periphery of the tool to do light planing cuts. Today, end mills are made in a wide range of sizes and styles. And, like lathe cutting tools, they are also made from many different types of materials. Small end mills are usually made from a solid piece of cutting material, in this case, high speed steel. For general machining, these tools are ground with two, three, or four cutting edges. For high-precision cuts with a fine finish, tools with six or more cutting edges are available. Other special purpose end mills, like ball end mills, dovetail cutters, corner-rounding cutters, t-slot cutters and keyway cutters are available for cutting specific shapes. Here we are looking at a face milling cutter. This tool has a two-inch cutting diameter and uses three replaceable carbide inserts, similar to the ones we used on the lather. Fly cutters use a single point cutting tool to plane flat surfaces. The tool bit is mounted in a groove on the cutter’s head. As the spindle turns, the point of the tool cuts a circular pattern on the work piece, producing a flat surface. Fly cutters are able to take fairly wide, light cuts, which can produce an excellent finish.
The tool that is most often used to cut a narrow slot is a slitting saw. These saws come in a number of widths, diameters, and tooth sizes. The teeth on these tools are very fine, compared to other milling cutters, so the cutting speed should be slow.
Hole milling operations are another important job that can be done on the Smithy. The most commonly used tool for this work is of course a drill, but after the hole is drilled, other tools can be used to modify or finish the hole. A good example would be countersinks and counter bores.
Reaming is another important hole-milling operation. Reamers are multi-cutting-edge tools, used to enlarge a hole to exact size and fine finish. In practice, you start by drilling a hole slightly smaller than the finished hole size, and follow with a reamer of the exact hole size. If you don’t have a reamer in the size you need, a boring operation can be used. Here we are using a precision boring head and a carbide cutting tool. With a rigid setup and an even feed, this type of tool can machine very accurate holes from one-half inch up to four inches.
Tapping screw threads on a drill press requires a use of a specially designed tapping head and machine taps. Hand taps should never be used on a drill press under power, but you can use it to help start the threads and assist in alignment.
In order for the machine to work efficiently, the cutting tools must be sharp and must be held securely in the milling spindle. Today we have been holding our end mills with a precision end mill adapter. This type of tool holder is held in the spindle with a draw bar. The end mills are locked in place with a set screw that tightens down against the driving flat on the mill’s shank. Larger end mills and other tools that have a straight shank can be held in the spindle with a spring collet and draw bar. Spring collets have a strong precise grip that can hold a tool perfectly centered in the milling spindle. Drill chucks are only used to hold drills or other cutting tools in a plunge cut. Do no use a drill chuck to hold end mills. These chucks are not designed to handle the high-side loading force produced by most milling operations.”