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vibratory finishing

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
..., edges, and corners of the parts, or to cause the parts to rub against each other, or both. This action may deburr, generate edge and corner radii, clean the parts by removing rust and scale, and modify the surface stress. The basic mass finishing processes include: Barrel finishing Vibratory...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200197
EISBN: 978-1-62708-354-6
... Abstract After pouring, castings are allowed to solidify and cool. They are later removed from the molds in the shakeout operation. A series of activities then follow, which are generally referred to as finishing and heat treatment. These activities can be broadly categorized as shakeout...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370095
EISBN: 978-1-62708-447-5
... of new sand to be added to the return sand in green sand systems. Rotary shakeout systems are ideally suited for flaskless green sand and no-bake systems. Smaller volumes of larger sized castings are better suited for vibratory shakeouts, where crane handling and manual intervention are usually...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
... detail will in most cases keep the burr within the overall thickness (width) of the gear. These burrs are a result of the fit clearance of the tool members and, if necessary, can be removed by a vibratory finishing (tumbling) operation. Fig. 9 Edge radii design features. Source: Ref 6 Gear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350195
EISBN: 978-1-62708-315-7
... Abstract This chapter provides helpful guidelines for selecting a surface treatment for a given application. It identifies important design factors and applicable treatments for common design scenarios, materials, and operating conditions. It explains why heat treatments and finishing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... Abstract Superalloys are susceptible to damage from a variety of surface contaminants. They may also require special surface finishes for subsequent processing steps such as coating applications. This chapter describes some of the cleaning and finishing procedures that have been developed...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370021
EISBN: 978-1-62708-447-5
.... Vibratory feeders are also used to deliver new sand from the hopper to the core sand mixer. The chute is angled at 5° for the flow of the sand. Level sensors in the mixer send a signal to the vibratory motor to turn off once the preset level has been reached. Some foundries use a timer control to regulate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... resulted from finish-working the alloy slightly below the beta transus after prior heating above the beta transus. Fig. 7.14 Ti-6Al-4V plate. Widmanstätten alpha structure in plate rolled at 1040 °C (1900 °F) in the beta field. Etchant: 10%HF-5%HNO 3 . Original magnification: 500× Fig. 7.15...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200173
EISBN: 978-1-62708-354-6
.... No single combination of silica sand, bond, additives, and water fulfills all of the molding requirements for the many different kinds of steel castings. Many foundries use a facing sand against the pattern to improve casting surface finish. This is then backed with recycled molding sand. The casting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320011
EISBN: 978-1-62708-332-4
... is used for cast iron and smaller steel castings. The other mixes (of higher refractoriness) are used for medium- and large-sized steel castings. Sand mix additives for cast iron include sea coal (finely ground coal), wood flour, and dextrin, depending on the surface finish and the green strength needed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780093
EISBN: 978-1-62708-268-6
... if such dimensions are biased within the tolerance band. Techniques in this area include standard measuring equipment, optical comparators, coordinate-measuring machines, surface-finish gages, scales, and torque wrenches. Nondestructive test approaches for evaluating internal component positions and relationships...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850543
EISBN: 978-1-62708-260-0
... Alumina or colloidal silica abrasives 5 g Fe(N03)3 25 mL HC1 370 mL water Gamma alumina 12 g/L aq. ammonium persulfate MgO abrasive Mix fresh. Charge wheel heavily. Used when Mg-rich particles are present. Slow, requires a few minutes (Udy and coworkers). Used with vibratory polisher, short-nap cloth, 24...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410029
EISBN: 978-1-62708-280-8
..., with average wall thicknesses about 5 to 12 mm (0.2 to 0.47 in.) Produces coarser surface finish compared to alternative casting processes Castings are prone to subsurface hydrogen porosity due to the water in the sand mix Applications The considerations for applications for the green sand...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040030
EISBN: 978-1-62708-428-4
..., positioned with coating facing inwards; this provides greater coating edge retention, and ensures a flatter and more uniform surface finish due to a more even distribution of the harder sample within the softer mounting resin. An example of a typical specimen configuration prior to mounting is shown in Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370059
EISBN: 978-1-62708-447-5
.... The bushings are nitrided to withstand wear. Table 4.9 illustrates the design and major dimensions of the guide pins. Table 4.10 details the surface finish and tolerances specified for the bushings. Figure 4.4 illustrates the dimensions of the closing pins used for closing the cope over the drag...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
..., tubing, or structural shape ( Chapter 6 ) The finishing method , such as hot rolling or cold rolling ( Chapter 6 ) The microstructure , such as ferritic, pearlitic, and martensitic ( Fig. 8.1 and Chapter 9 ) The required strength level , as specified in standards The heat treatment...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.9781627082808
EISBN: 978-1-62708-280-8
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740163
EISBN: 978-1-62708-308-9
... that are conventionally blanked or pierced and then shaved. A quick touch-up on an abrasive belt or a short treatment in a vibratory finisher may be used to remove the small burr on the blank. Specially designed single-operation or compound blanking and piercing dies are generally used for the process. Bending...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900201
EISBN: 978-1-62708-350-8
... produces a compound layer of ε iron nitride. The next step is a mechanical polish of the nitride layer by vibratory polishing, lapping, centerless grinding, or similar means. Finally, to optimize corrosion resistance, the component is reimmersed in the salt quench bath for 20 to 30 min, rinsed, and oil...