A method of manufacturing a hot-stamped part includes: inserting a blank into a heating furnace including a plurality of sections with different temperature ranges; step heating the blank in multiple stages; and soaking the blank at a temperature of about Ac3 to about 1,000? C., wherein in the step of heating the blank, a temperature condition in the heating furnace satisfies the following equation: 0<(Tg?Ti)/Lt<0.025? C./mm, where Tg denotes a soaking temperature (? C.), Ti denotes an initial temperature (? C.) of the heating furnace, and Lt denotes a length (mm) of step heating sections.

The invention relates to a method for manufacturing an inlet lip skin part according to a nominal definition comprising dimensions of the lip skin and associated tolerances, the method comprising the steps of: a) obtaining at least one blank from at least one metal sheet; b) deforming the at least one blank into an intermediate part; and c) machining a first surface of the intermediate part with a first machining path, said first machining path being independent of the real dimensions of the intermediate part, and being based on the nominal definition of the lip skin part, so as to obtain a semi-machined part, and d) machining a second surface of the semi-machined part with a second machining path, said second machining path being based on real dimensions of the semi-machined part and the nominal definition of the lip skin part.

A method of manufacturing a hot-stamped part includes: inserting a blank into a heating furnace including a plurality of sections with different temperature ranges; step heating the blank in multiple stages; and soaking the blank at a temperature of about Ac3 to about 1,000? C., wherein in the step of heating the blank, a temperature condition in the heating furnace satisfies the following equation: 0<(Tg?Ti)/Lt<0.025? C./mm, where Tg denotes a soaking temperature (? C.), Ti denotes an initial temperature (? C.) of the heating furnace, and Lt denotes a length (mm) of step heating sections.

A method of manufacturing a hot-stamped part includes: inserting a blank into a heating furnace including a plurality of sections with different temperature ranges; step heating the blank in multiple stages; and soaking the blank at a temperature of about Ac3 to about 1,000? C., wherein in the step of heating the blank, a temperature condition in the heating furnace satisfies the following equation: 0<(Tg?Ti)/Lt<0.025? C./mm, where Tg denotes a soaking temperature (? C.), Ti denotes an initial temperature (? C.) of the heating furnace, and Lt denotes a length (mm) of step heating sections.

Apparatus for facilitating the disassembly and assembly of a pressed-together crankshaft such as found on a two-stroke engine used in automobiles, motor boats, wave runners, etc. The apparatus includes a crankshaft engagement member rotatably connected to a channel member which includes a fixed abutment plate, a channel having a pair of flanges interconnected by a web portion which is bent outwardly to provide clearance for at least a portion of a crankshaft assembly engaged by the crankshaft engagement member. The engagement member includes a slot for receiving and supporting a crankshaft throw while a pin forming part of the throw is pressed from its operative position. The engagement member includes a second slot for receiving a center portion of the crankshaft assembly while a center shaft member is pressed from its operative position to allow the removal of a crankshaft center support bearing. The crankshaft engagement member may include a third slot for receiving a center portion of a crankshaft assembly having a different configuration. The crankshaft engagement member is rotatable in order to position a selected slot in its operative position. The crankshaft engagement member is replaceable with the engagement member configured to receive a predetermined crankshaft assembly.

Provided is a metal gasket including, expressed in mass%, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.04% or less (including 0%), S: 0.01% or less (including 0%), Ni: 25.0-60.0%, Cr: 10.0-20.0%, either Mo or W alone, or both Mo+W/2: 0.05-5.0%, Al: more than 0.8% to 3.0% or less, Ti: 1.5-4.0%, Nb: 0.05-2.5%, V: 1.0% or less (including 0%), B: 0.001-0.015%, Mg: 0.0005-0.01%, S/Mg: 1.0 or less, N: 0.01% or less (including 0%), and O: 0.005% or less (including 0%), with the remainder being Fe and unavoidable impurities. The metal gasket has a metal structure in which a precipitate phase having an average equivalent circle diameter of 25 nm or larger is not present within the austenite base.

Provided is a metal gasket including, expressed in mass%, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.04% or less (including 0%), S: 0.01% or less (including 0%), Ni: 25.0-60.0%, Cr: 10.0-20.0%, either Mo or W alone, or both Mo+W/2: 0.05-5.0%, Al: more than 0.8% to 3.0% or less, Ti: 1.5-4.0%, Nb: 0.05-2.5%, V: 1.0% or less (including 0%), B: 0.001-0.015%, Mg: 0.0005-0.01%, S/Mg: 1.0 or less, N: 0.01% or less (including 0%), and O: 0.005% or less (including 0%), with the remainder being Fe and unavoidable impurities. The metal gasket has a metal structure in which a precipitate phase having an average equivalent circle diameter of 25 nm or larger is not present within the austenite base.

A device for jointing a plurality of elements, each comprising a cutout for a shaft, in a predetermined angular position on the shaft, may include a traversable guide carriage configured to push the shaft from above through the cutouts of the elements. The device may also include an electrical spindle drive and a pneumatic piston for displacing the traversable guide carriage.

A rework press assembly for reworking a dimensionally non-conformant component is provided. The rework press assembly includes a frame, a die coupled to the frame and configured to contact a first portion of the component, and a ram. The ram is coupled to the frame opposite the die with respect to an axis of the rework press assembly and is configured to contact a second portion of the component. The ram and the die define a component cavity therebetween. At least one of the die and the ram has a first length, relative to the axis, in response to the rework press assembly being at a first thermal condition. The at least one of the die and the ram has a second length, relative to the axis, in response to the rework press assembly being at a second thermal condition, and the second length is greater than the first length.

A roller lifter includes a lifter body having a cylindrical peripheral wall with a sliding surface on an outer periphery thereof and a roller rotatably mounted via a shaft member on the lifter body and brought into contact with a cam. The sliding surface is reciprocally slid in a sliding hole of a lifter guide. The peripheral wall has a thicker part in a part thereof in a circumferential direction. The thicker part is shaped such that a thickening part is annexed to an outer wall part formed continuously with a constant thickness in the circumferential direction. The thicker part is formed with a rotation stopper bulging outward. The rotation stopper enters a guide groove communicating with the sliding hole of the lifter guide.