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Book Chapter

By Eugene M. Langworthy
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002170
EISBN: 978-1-62708-188-7
... Abstract This article discusses the principal process steps, specifications, defects, applications, advantages, and disadvantages of chemical milling (CM) in aerospace industries. The process steps include precleaning, masking, scribing, etching, final cleaning, stripping, and mechanical...
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Published: 01 January 1989
Fig. 4 Design features for chemical milling. (a) Single chemical milling step. (b) Second chemical milling step. (c) Transition zone of greater thickness adjacent to step More
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Published: 01 January 1989
Fig. 1 Flow chart of principal process steps for chemical milling More
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Published: 01 January 1989
Fig. 3 Steps in two-stage chemical milling of I-beam ribs More
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Published: 01 January 1989
Fig. 5 Typical process defects in chemically milled parts More
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Published: 01 January 1989
Fig. 9 Fillet area of 0.5 mm (0.020 in.) step 7075-T6 sheet chemically milled in (a) standard etchant and (b) TEA etchant. 55× More
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Published: 30 November 2018
Fig. 21 Breakeven between chemical machining (milling) and mechanical milling. The choice between them depends on the fillet ratio and depth of cut. More
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Published: 01 January 1989
Fig. 38 Breakeven between chemical and mechanical milling. Choice between them depends on fillet ratio and depth of cut. More
Book Chapter

By S. Lampman
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001081
EISBN: 978-1-62708-162-7
... are converted into general mill products and secondary fabrication (forging, extrusion, forming, machining, chemical milling and joining) of finished shapes from mill products and the heat treatment of titanium alloys. fabrication forgings heat treatment mechanical properties microstructure mill...
Book Chapter

By Douglas V. Gallagher, R.E. Hardesty
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002191
EISBN: 978-1-62708-188-7
... highlights some of the precautions to be followed while machining beryllium metals. Information on the cutting oils, cutting tools, and speeds and feeds used in turning the beryllium are also provided. The article describes the chemical milling and photochemical machining methods that are used for etching...
Book Chapter

By Harry E. Chandler
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002189
EISBN: 978-1-62708-188-7
..., grinding, and sawing, performed on titanium and its alloys. The article also provides information on electrochemical machining (ECM), chemical milling (CHM), and laser beam machining (LBM) for titanium and titanium alloys. Guidelines for machining zirconium alloys and hafnium are also provided. The article...
Book Chapter

By Rodney R. Boyer
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003141
EISBN: 978-1-62708-199-3
..., including all operations that convert ingot into general mill products, such as billet, bar, plate, sheet, strip, tube, and wire. The section on secondary fabrication describes processes such as die forging, extrusion, hot and cold forming, machining, chemical milling, and joining. The article presents...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001082
EISBN: 978-1-62708-162-7
...-6AI-4V alloy. It also talks about the chemical milling and weld repair, and describes the product applications of titanium alloy castings. Tensile properties, standard industry specifications, and chemical compositions of various titanium alloy castings are tabulated. alloy types casting design...
Book Chapter

By Thomas E. Kearney
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001325
EISBN: 978-1-62708-170-2
... Abstract This article discusses coating products available for use in the aerospace industry that are compliant with regulations requiring reductions in emissions from organic solvents. The coating products addressed include primers, topcoats, and chemical milling maskants. It describes...
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Published: 01 January 1989
Fig. 36 Relationship between surface finish and depth of cut for the chemical milling of 7075 aluminum sheet. Source: Ref 5 More
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Published: 30 November 2018
Fig. 20 Relationship between surface roughness and depth of cut for the chemical milling of AA 7075 aluminum sheet. Source: Ref 15 More
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Published: 01 January 1989
Fig. 13 Effects of grinding on high-cycle fatigue behavior of annealed Ti-6Al-4V with a hardness of 32 to 34 HRC. EDM, electrical discharge machining; CHM, chemical milling More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
.... Two processes involved: chemical milling, chemical blanking Fine abrasive particles carried in a high velocity gas stream are used to machine and grind materials Equipment Chemical milling: Large or small, thick parts; masking facilities, corrosion resistant processing tanks and fixtures, vented...
Book Chapter

By Eric W. Brooman
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002494
EISBN: 978-1-62708-194-8
... deflect Avoid sharp corners and edges Avoid intricate designs and surface features Chemical milling Avoid features (e.g., small recesses, blind holes, cavities) that would trap process chemicals or prevent satisfactory rinsing Provide good natural drainage or use drainage holes...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003190
EISBN: 978-1-62708-199-3
... of some machining methods on fatigue strength are given in Table 4 . The electropolishing of 4340 steel resulted in a 12% decrease in fatigue strength compared to gentle grinding. Chemical milling (CM) of Ti-6Al-4V resulted in an 18% drop in fatigue strength compared to gentle grinding, while...