Injection Molding a Polyolefin-Based Nanocomposite versus a Talc-Filled TPO

2001 ◽  
Vol 702 ◽  
Author(s):  
David A. Okonski
Keyword(s):  
Injection Molding ◽  
Research And Development ◽  
Nanocomposite Material ◽  
General Motors ◽  
Body Side ◽  
Processing Window ◽  
Tier 1

ABSTRACTGeneral Motors Research and Development and Basell Polyolefins have jointly developed a family of polyolefin-based nanocomposites for use in the injection molding of body-side claddings. Basell Polyolefins commercialized one of these materials as Hifax DX277 in September of 2000, and General Motors has exclusive use of this material. Confidence in the ability of DX277 to perform as intended is being reinforced by molding trials at various Tier 1 locations. In addition to mass savings, the nanocomposite material is showing a much wider processing window than conventional talc-filled TPO’s – allowing Tier 1 molders the opportunity to process away problems rather than initiating a tooling change. This paper will describe the processing advantages associated with the injection molding of a polyolefin-based nanocomposite over a conventional talc-filled TPO.

Development and Characterization of High Strength SiC Rotors

1991 ◽  
Author(s):  
R. W. Ohnsorg ◽  
G. V. Srinivasan
Keyword(s):  
Injection Molding ◽  
Gas Turbine ◽  
Slip Casting ◽  
High Strength ◽  
Cold Isostatic Pressing ◽  
General Motors ◽  
Injection Molding Process ◽  
Molding Process ◽  
Turbine Engine ◽  
Technology Applications

Sintered α-SiC (Hexoloy® SA*) turbine engine components have been fabricated by Carborundum for the Advanced Gas Turbine (AGT) Program and, more recently, for the Advanced Turbine Technology Applications Project (ATTAP) using three primary forming procedures — injection molding, cold isostatic pressing (CIP) followed by green machining, and slip casting. The near net-shape fabrication of injection molded AGT-100 radial rotors for the Allison Gas Turbine Division (AGTD) of General Motors Corporation and, more recently, AGT-5 axial rotors, has been demonstrated. The current emphasis at Carborundum is to refine the injection molding process, bringing it to a performance and reproducibility level sufficient for production needs. The process changes leading to increases in component strength from approximately 380 MPa (55 ksi) to 595 MPa (86 ksi) will be discussed, as well as investigation of the failure mechanism and proposed process modifications to enhance properties even further.

Applying Quality Tools for Managing the Production of Automotive Parts

2015 ◽  
Vol 809-810 ◽  
pp. 1299-1304
Author(s):  
Laurentiu Aurel Mihail
Keyword(s):  
General Motors ◽  
Management Tools ◽  
Automotive Supplier ◽  
The Core ◽  
Tier 1 ◽  
Process Documentation ◽  
Automotive Parts ◽  
Original Equipment Manufacturers ◽  
Quality Tools ◽  
Production Part

The paper presents a frame for applying the core tools for managing the production of automotive parts, supplied to the Original Equipment Manufacturers (OEM). Those core tools and another quality management tools and procedures are required to be applied by the automotive customers, according with the OEM’s requirements. The requirements in discussion are condensed within the PPAP (Production Part Approval Process) documentation. The study presents a way for starting the design and implementation of such a procedure for a tier 1 automotive supplier, according with the appropriate various Customer Specific Requirements (CSR). The study is useful especially for those ones that supply simultaneous for several global automotive OEM (BMW, Chrysler, Fiat Group Automobili, Ford Motor, General Motors, PSA Peugeot Citroen, Renault).

Thomas Midgley and the Politics of Industrial Research

1980 ◽  
Vol 54 (4) ◽  
pp. 480-503 ◽  
Author(s):  
Stuart W. Leslie
Keyword(s):  
World War Ii ◽  
Research And Development ◽  
Critical Role ◽  
Scientific Research ◽  
Chief Executive ◽  
Industrial Research ◽  
General Motors ◽  
World War ◽  
Synthetic Rubber ◽  
Gasoline Additives

The conventional distinctions between “practical” and “scientific” research and development can be misleading. The experience of Thomas Midgley, Jr., at the General Motors Corporation in the three decades before World War II, and especially his critical role in the development of “antiknock” gasoline additives, freon refrigerant, and synthetic rubber, illustrate this fact. Dr. Leslie demonstrates that the management of corporate research and development, especially as that management affects uniquely talented individuals whose interests do not necessarily reflect the immediate needs of the company as seen by management, is basic to success. To solve such problems as they arose, Charles F. Kettering, himself a sympathetic scientist as well as distinguished inventor, worked closely with chief executive Alfred P. Sloan, whose genius for solving managerial problems matched the scientific genius of the most brilliant men in the General Motors laboratories.

The Chevrolet Corvette

2005 ◽  
Keyword(s):  
Research And Development ◽  
50Th Anniversary ◽  
Press Release ◽  
Fiftieth Anniversary ◽  
General Motors ◽  
Chief Engineer ◽  
Technical Description ◽  
Sixth Generation

This collection chronicles the development of America's favorite sports car by the designers and engineers who made it happen. These 30 papers cover more than 50 years and six generations of the engineering, styling, and research and development of the Chevrolet Corvette. Twenty-two papers focus on the first five generations, with the last eight papers detailing the new sixth-generation Corvette. Material collected in this volume truly has unprecedented historical value. A 1954 paper by Maurice Olley presents a technical description of the first production Corvette. The book's preface includes insight from Zora Arkus-Duntov into the reasons behind the Corvette's development. Other highlights include comments from Corvette's chief engineer, a press release created by General Motors on its fiftieth anniversary, and a timeline with photos documenting the Corvette's evolution. Contents Includes: Preface Production Improves the Breed by Dennis Simanaitis Zora's Contribution to the Corvette by Dave McLellan Sports Car Development by Zora Arkus-Duntov McLellan's Corvette Era by Dave McLellan Comments from Corvette's Chief Engineer by David C. Hill Corvette People : GM Press Release Corvette Timeline by GM for the 50th Anniversary of the Corvette

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