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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004038
EISBN: 978-1-62708-185-6
... Abstract Ribs and bosses are the integral functional elements or features of a forging that project outward from a web in a direction parallel to the ram stroke. This article describes the design, functions, and producibility of ribs and bosses. It relates their design to grain flow...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006098
EISBN: 978-1-62708-175-7
... Application area Alloy Automotive Exhaust system flanges and sensor bosses 409L, 409LNi, 434L, 434LNb Antilock brake system sensor rings 410L, 434L Rearview mirror mounts 430L, 434L, 316L Brake components 434L Seat belt locks 304L Windshield wiper pinions 410L Windshield...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004033
EISBN: 978-1-62708-185-6
... producers of hammer and press forgings (a) Corner or fillet Height of rib or boss, in. Source 1 2 3 4 5 6 Aluminum alloys (b) ; blocker-type forgings Corner, in. (c) 0.13 0.22 0.31 0.41 0.50 (0.60) Producer Fillet (unc), in. (d) 0.45 0.87 1.25 1.65 2.10 2.50...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009018
EISBN: 978-1-62708-187-0
... Abstract This article begins with a schematic illustration of basic principles of sand molding. It discusses the general design factors, such as parting lines, location of radii, bosses and undercuts, and rib locations, of sand molding. The article schematically demonstrates alternative design...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009023
EISBN: 978-1-62708-187-0
... the impracticability of risering an isolated section. The sand cast steel gear housing shown schematically in Fig. 2 contains an internal web that supports a bearing boss totally inaccessible to direct risering. A preliminary casting, made as a test for unsoundness, showed the anticipated defect...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003038
EISBN: 978-1-62708-200-6
... Minimum practical thickness Roving, 1.0 mm Mat, 1.5 mm Maximum practical thickness Roving, 75 mm Mat, 25 mm Normal thickness variation Per Ref 5 Maximum thickness buildup As required Corrugated sections Yes, longitudinal Metal inserts No Bosses No Ribs...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006119
EISBN: 978-1-62708-175-7
... 25. Kovach C.W. and Moskowitz A. , How to Upgrade Free-Machining Properties , Met. Prog. , Vol 91 , Aug 1967 , p 173 – 180 26. Samal P.K. , Thakur S.N. , Scott M.T. , and Hauer I. , “Exhaust Flanges and Oxygen Sensor Bosses-Machinability Enhancement of...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006066
EISBN: 978-1-62708-175-7
... exhaust flange application, powder metallurgy offers greater flexibility with flange designs (grooves, tapers, domes, etc.), in addition to material savings derived from its near-net shape capability. Powder metallurgy stainless steel flanges and oxygen sensor bosses are lower in cost than wrought...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006493
EISBN: 978-1-62708-207-5
... Involving Ribs and Bosses , Metalworking: Bulk Forming , Vol 14A , ASM Handbook , ASM International , 2005 , p 741 – 758 14. Forging Design Involving Corners and Fillets , Metalworking: Bulk Forming , Vol 14A , ASM Handbook , ASM International , 2005 , p 759 – 774 15. Forging Design...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003417
EISBN: 978-1-62708-195-5
... Normal thickness variation As required Maximum thickness buildup As required Corrugated sections Yes, longitudinal Metal inserts No Bosses No Ribs Yes, longitudinal Molded-in labels Yes, but not recessed Raised numbers No Finished surfaces...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005266
EISBN: 978-1-62708-187-0
... is uniform wall thickness, which is necessary for obtaining equal solidification times throughout the casting. Die castings have wall thicknesses of approximately 0.64 to 3.81 mm (0.025 to 0.150 in.), depending on casting shape and size. Bosses, ribs, and filleted corners always cause local increases...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004034
EISBN: 978-1-62708-185-6
... Forging for a nozzle boss fitting used in a rocket engine. As shown, draft angles are measured from the direction of the ram, which in this instance is vertical. Dimensions given in inches. Fig. 5 Wing spar forging with a broken parting line, illustrating the method for measuring angle of draft...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009019
EISBN: 978-1-62708-187-0
...) shows a core that is semicylindrical — one of the most common of core shapes. No problem is presented in removing this core from the core box; natural draft is provided by the shape of the core, and no obstructions exist. Figure 1(b) shows two bosses formed by the core box. Boss A is simple to...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009021
EISBN: 978-1-62708-187-0
... casting was gated on the three end bosses, widening of two of the three bosses shown in Fig. 26 placed a larger area of the boss directly over posts A. This created a direct path for metal flow to the opposite heavy section and eliminated cold shuts. Increasing the size of these bosses added enough...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002491
EISBN: 978-1-62708-194-8
... Process Process pressure Maximum equipment pressure Maximum size Pressure limited Ribs Bosses Vertical walls Spherical shape Box sections Slides/ cores Weldable Good finish, both sides Varying cross section MPa ksi MN tonf m 2 ft 2 Thermoplastics Injection 15–45 2–7 30...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004015
EISBN: 978-1-62708-185-6
... operations Fins Replacement of multiple parts Slots and dovetails Reduce component inventories Screw bosses, hinges, slides, snap fit, thermal breaks Provide attachment points Table 1 lists some extrusion alloys by aluminum alloy series. Ranging from simple to complex cross sections...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009025
EISBN: 978-1-62708-187-0
... thinner wall, which joined the flanges at the mid-point of their width. Also connecting the flanges were a series of tapping bosses. Because of the several variations in wall thickness, hot tears appeared in about 20% of the castings at the junctions of the thin wall with the heavier flanges; the thin...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002441
EISBN: 978-1-62708-194-8
... Boolean operations (union, difference, and intersection) is also nontraditional and confused designers and other users, who wanted to make holes, bosses, and other design elements. Boolean methods are also difficult to use when a design has to be changed during the product development process—sometimes...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006525
EISBN: 978-1-62708-207-5
... minimized (to save weight in the part), thicker sections, bosses, connections or fittings often have to be integrated into the part (which cannot be simply fed through the thin walls), and squeeze pins (direct or indirect) must be considered. When placed on the fixed die half, an insulating plate or water...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004037
EISBN: 978-1-62708-185-6
... bosses, the bottom bar strips, the stiffening rib, and the outside perimeter. However, when the forging position is changed as shown in Fig. 12(b) , some of the draft becomes natural, notably at the far edges (left and right) and at the left sides of the center bar and bar at right. Parting line...