Boring, Recessing And Multiple Turning Tools
A boring tool or boring-bar is, in itself, a very simple tool and yet, in its various applications, it may require considerable forethought in order to obtain a tool which will be exactly the right one for the job. In order to properly design any kind of a cutting tool, an intimate knowledge of the actual working conditions which are met with in using the tool is a valuable asset. There are a number of factors which influence the design of boring tools and there are also many types of machinery to which boring tools may be applied...
| Title | Boring, Recessing And Multiple Turning Tools |
| Author | Albert A. Dowd |
| Publisher | The Industrial Press |
| Year | 1914 |
| Copyright | 1914, The Industrial Press |
| Amazon | Boring, recessing and multiple turning tools |
Machinery's Reference Series
Each Number Is One Unit In A Complete Library Of Machine Design And Shop Practice Revised And Republished From Machinery
Number 128
Chapter I. Design And Construction Of Boring Tools- A boring tool or boring-bar is, in itself, a very simple tool and yet, in its various applications, it may require considerable forethought in order to obtain a tool which will be exactly the right on...
- General Points In Boring Tool Design
- Some of the important points in the design and construction of tools for single-point boring are here given, and while some of these may seem obvious, they may be of assistance in calling attention to...
- Boring: Tools For The Engine Lathe
- Boring tools which are designed for use in the engine lathe are generally of a very simple kind, adapted only to light cutting and seldom used for more than one or two pieces of work of the same size ...
- Adjustable Boring Tools For Jig-Work
- Fig. 2 represents two styles of adjustable boring tools used mostly for boring small shallow holes or jig bushings. These tools are capable of fine adjustments but are not suited for any kind of heavy...
- Boring Tools For The Horizontal Turret Lathe
- Boring tools which are required for use on the horizontal turret lathe are of many forms and their design is somewhat dependent on the type of machine to which they are to be attached. On machines hav...
- Single-Point Starting Tool For Taper Holes
- The work A shown in Fig. 3 is a malleable iron automobile hub with a cored taper hole which runs out of truth very badly. Therefore it was necessary to design a starting tool of the single-point varie...
- Boring And Facing Tool For A Flat Turret
- An example of a boring tool which is also used for facing out a pocket on a turret lathe having a flat turret is shown in the lower part of fig. 3. This tool is of the shovel nose type and its cutti...
- Boring-Bar With Provision For Cutting Lubricant
- On certain classes of work it is very difficult to supply the cutting points of the tools with sufficient lubrication to make them thor-ouhgly efficient, when the regular supply system is used. Some m...
- Bar For Undercutting, Facing And Boring In The Vertical Turret Lathe
- A very difficult condition for which to design tools is shown in Fig. 6, as the work itself requires rapidity of handling and is a steel casting weighing about 300 pounds. Only a part of the piece is ...
- Slip-Cutter Bar For The Vertical Turret Lathe
- The steel hub shown at A in Fig. 7 is held on a special fixture, located by the previously bored and reamed hole which fits the stud H. The hole K has been rough-bored in the first operation, but enou...
- Multi-Cutting-Bar For The Vertical Turret Lathe
- An example of a bar designed to remove a large amount of stock in a very short time is given in Fig. 8. The work shown at G is a steel boiler nozzle which is forged, and a 5-inch hole punch in it befo...
- Other Types Of Boring-Bars
- There are several bars on the market which are adjustable for various diameters by means of micrometer screws and taper wedges. These are useful for many purposes but space will not permit a detailed ...
- Chapter II. Recessing Tools
- Many varieties of cylindrical work call for the machining of an annular recess or groove in a place which may be inaccessible to the cutting tools. The form of recess varies greatly and the accuracy r...
- Points In Design Of Recessing Tools
- 1. Rigidity is of the greatest importance and every precaution should be taken to insure as substantial a holder as possible. The tool itself should be of as great a section as the conditions and the ...
- Recessing Tools For The Engine Lathe
- The upper illustration in Fig. 1 shows a bushing A which is held by the outside in regular chuck jaws. This work is to be done on the engine lathe, and the recess is to be cut at the same setting. A f...
- Recessing Tool For A Horizontal Turret Lathe
- The work A shown in Fig. 2 is a steel forging of an automobile hub which is held in a three-jawed chuck by the flange B, the tapered portion entering the hole G in the chuck body. The inside of the hu...
- Eccentric Recessing Tool For A Horizontal Turret Lathe
- The work A shown in Fig. 3 is a steel flange which is to be recessed at B in order to provide the necessary clearance for the threaded portion G. In this instance the cut-off slide was used during the...
- Piloted Recessing Tool For An Automobile Flywheel
- A rather peculiar condition is shown in Fig. 4, the work A being an automobile flywheel having a semi-circular recess at B. Attention is called to the fact that this recess is put in at an angle of 45...
- Double Recessing Bar For A Rear Axle Housing
- The work A shown in Fig. 5 is a bronze rear axle housing for an automobile, and the recessing bar is only one of a group of tools used at the same setting of the work. Previous to this setting the fin...
- Recessing Tool For An Automobile Bearing Retainer
- The work shown at A in Fig. 6 is a malleable iron bearing retainer for an automobile. The casting is held by the outside in a three-jawed chuck; the machine on which the operations are performed is a ...
- Recessing Tool For A Large Collar
- The large collar A in Fig. 7 was held by the outside of the flange in a three-jawed chuck on a horizontal turret lathe. The internal groove D was to be cut during this setting of the work, and as a sm...
- Recessing Bar For A Triple Groove
- In all of the examples which have so far been given, the work has been done in a horizontal plane, but we shall describe a few cases which are handled in a vertical plane on the vertical turret lathe....
- Piloted Recessing Bar For A Triple Internal Groove
- The cast-iron valve cap shown in Fig. 9 is another example of a piece of work having three grooves equally spaced, and in which the lower groove is at a considerable distance from the turret. This pie...
- Recessing- Tool Operated By Bevel Gears
- A somewhat unusual condition is shown in Fig. 10, this arrangement having been suggested for the work A in order to rapidly perform the grooving operation deep down in the interior of the casting at V...
- Arrangement For External Grooving
- A thin piece of work for electrical machinery, shown at A in fig. 11, has been completely machined with the exception of the groove B. At the time when the operation of grooving takes place, a revolvi...
- Chapter III. Adjustable And Multi-Cutting Turning Tools
- The cost of tool equipment for the manufacture of interchangeable work is an item which should be proportionate to the number of pieces to be machined. The saving in time which can be made by the use ...
- General Points In Design
- 1. Rigidity: Avoid overhang as much as possible unless some sort of outboard support can be used. Pilot the tool if practicable. 2. Arrangement of tools: They should be perpendicular to the plane in ...
- Multi-Turning Tool For Electric Motor Shafts
- One example shown in Fig. 1 is given of a multi-turning tool for bar work. This tool was designed for use on the electric motor shaft shown at A in the illustration. The work was handled in short leng...
- Multiple Tool-Holder For The Turntable-Type Of Lathe
- The bronze nut shown at A in Fig. 2 is an example of a piece of work which is to be drilled and turned on two diameters at the same time. There were six pieces of this kind varying slightly in size, w...
- Multiple Tool-Holder For An Automobile Hub
- The piece of work shown at A in Fig. 3 is an automobile hub, and the tool-holder is arranged so that the operations of turning and boring can be carried on simultaneously with the facing. The tools L,...
- Adjustable Turning Tool For Short Bushing's
- A number of short bushings such as that shown at A in Fig. 4 were to be refinished on the outside. The bushings were of various diameters ranging from 2 1/4 to 4 inches, while the lengths varied from ...
- Holder For Adjustable Boring- And Turning-Bars
- The work shown at A in Fig. 5 is a cast-iron pot from which concentric packing rings are to be cut, and the boring and turning are done at the same time. Two cast-iron holders N are tongued at 0 and s...
- Piloted Multiple Turning Tool For Steel Gear Blanks
- The automobile jack-shaft gear blank shown at A in Fig. 6 is of alloy steel and it is held in special chuck jaws so that it can be drilled, turned and faced simultaneously. A special tool-block on the...
- Double-End Piloted Turning Tool For Pistons
- The piston A shown in Fig. 7 is held by the inside on a special expanding pin chuck B. The arrangement of tools is that recommended by the Pratt & Whitney Co., for turning automobile pistons on their ...
- Multiple Turning Tool For The Vertical Turret Lathe
- The vertical turret lathe is less frequently supplied with multiple tools than the horizontal type of machine, for the reason that the regular equipment supplied by the manufacturers is adapted to a w...
- Piloted Multiple Turning Tool For Triple Gear Blank
- A radical departure from regular methods is shown in Fig. 12. The work A for which the equipment was designed is a cast-iron triple gear blank. Attention is called to the fact that in this illustratio...
- Multiple Toolpost Turret For The Side-Head
- The cone pulley shown at A in Fig. 13 was machined in one setting. The casting was held by the inside of the lower or largest step of the cone and a driver (not shown) was placed against the interior ...
- Multiple Turning Tool For The Vertical Boring Mill
- The vertical boring mill is seldom equipped with multiple turning tools, but there are cases where production can be increased considerably by their use. One example only is given of the use of an equ...
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